Analog Devices Blackfin Landscape LCD EZExtender Manual Rev 11

							Blackfin Landscape LCD EZ-Extender Manual 2-9  Landscape LCD EZ-Extender Hardware Reference
AD7879 PENIRQ Jumper (JP10)
The AD7879 PENIRQ jumper (JP10) connects the interrupt pin of the Ana-
log Devices AD7879 LCD touch controller (
U1) to one of three GPIO 
pins of the Blackfin processor. 
JP10 adds flexibility to the extender: you 
can choose any one of the available GPIO pins (
GPIO1—3). By default, JP10 
is populated so that the 
GPIO1 pin of the expansion interface II or the PPI 
stamp connector can be used to connect to the AD7879 Penirq pin (see 
Table 2-9). 
AD7147 INT Jumper (JP11)
The AD7147 INT jumper (JP11) connects the interrupt pin of the Analog 
Devices AD7147 capacitive touch controller (
U3) to one of three GPIO 
pins of the Blackfin processor. 
JP11 adds flexibility to the extender: you 
can choose any one of the available GPIO pins (
GPIO1—3). By default, JP11 
is populated so that the 
GPIO2 pin of the expansion interface II or the PPI 
stamp connector can be used to connect to the AD7147 interrupt pin (see 
Table 2-10).  Table 2-9. JP10 Settings
Functionality JP10 Setting
AD7879 PENIRQ connects to GPIO1 JP10.1 and JP10.2 (default)
AD7879 
PENIRQ connects to GPIO2 JP10.3 and JP10.4
AD7879 PENIRQ connects to GPIO3 JP10.5 and JP10.6
Table 2-10. JP11 Settings
Functionality JP11 Setting
AD7147 
INT connected to GPIO1 JP11.1 and JP11.2
AD7147 INT connected to GPIO2 JP11.3 and JP11.4 (default)
AD7147 
INT connected to GPIO3 JP11.5 and JP11.6 
						

							Jumper Settings
2-10 Blackfin Landscape LCD EZ-Extender Manual
Oscillator Disable Jumper (JP12)
The oscillator disable jumper (JP12) disables the 5 MHz oscillator driving 
the 
PPI0CLK net and LCD display. The disabled oscillator mode is particu-
larly suited for low-power applications.
By default, 
JP12 requires no jumpers. As a result, the oscillator is driving 
the 5 MHz clock. You can permanently disable the oscillator by populat-
ing a jumper between 
JP12.2 and JP12.3. The oscillator also can be 
enabled or disabled via the GPIO pin of the AD7147 capacitive touch 
controller. To enable or disable the oscillator, write to the respective con-
trol registers of the AD7147 controller (
U3) and place a jumper between 
JP12.1 and JP12.2 (see Table 2-11).
LCD Backlight Enable Jumper (JP13)
The LCD backlight enable jumper controls the power circuitry for the 
LCD backlight. The disabled LCD backlight option is particularly suited 
for low-power applications. 
By default, 
JP13 requires a jumper between JP13.1 and JP13.2. When the 
EZ-Extender is powered up, the backlight power circuit (
VR1) is OFF. 
To enable the LCD backlight, use the GPIO (
Aux) pin of the AD7879 
touch controller (
U1). Write to the appropriate control registers of the 
controller using the SPI interface of the Blackfin processor. You also can 
control the LCD backlight via the 
GPIO3 flag pin, which is linked to the 
Blackfin processor directly. In the latter case, you do not need to  Table 2-11. JP12 Settings
Oscillator JP12 Setting
Enabled No jumper installed (default)
Controlled via AD7147 GPIO
JP12.1 and JP12.2
DisabledJP12.2 and JP12.3 
						

							Blackfin Landscape LCD EZ-Extender Manual 2-11  Landscape LCD EZ-Extender Hardware Reference
communicate to the controller in order to control the LCD backlight. The 
benefit of using the AD7879 device over the 
GPIO3 flag pin for LCD con-
trol is that the flag pin remains free and can be used for other applications 
(see Table 2-12).
Table 2-12. JP13 Settings
LCD Backlight JP13 Setting
Controlled via AD7879 GPIO JP13.1 and JP13.2 (default)
Controlled via 
GPIO3 JP13.2 and JP13.3 
						

							Connectors
2-12 Blackfin Landscape LCD EZ-Extender Manual
Connectors
Figure 2-3 shows the locations of all connectors on the Blackfin Land-
scape EZ-Extender. The following sections describe the connectors and 
associated functionality.
Figure 2-3. Connector Locations 
						

							Blackfin Landscape LCD EZ-Extender Manual 2-13  Landscape LCD EZ-Extender Hardware Reference
Expansion II PPI Connector (J1)
The expansion II PPI connector (J1) connects the Landscape LCD 
EZ-Extender to the PPI interface of the Blackfin processor. Use 
J1 to con-
nect the extender to the ADSP-BF526 EZ-Board/ EZ-KIT Lite. The reset, 
power, and ground lines from the ADSP-BF526 EZ-Board/ EZ-KIT Lite 
also are brought up from 
J1 to the extender.
Use the expansion II PPI connector and low speed I/O (LSIO) connector 
(
J2, described in “Expansion II LSIO Connector (J2)”) on the 
ADSP-BF526 EZ-Board/ EZ-KIT Lite for the extender to function 
properly.
Expansion II LSIO Connector (J2)
The expansion II LSIO connector (J2) connects the Landscape LCD 
EZ-Extender to the SPI, TWI, and GPIO pins of the Blackfin processor. 
Use 
J2 to connect the extender to the ADSP-BF526 EZ-Board/ EZ-KIT 
Lite. The power and ground lines from the ADSP-BF526 EZ-Board/ 
EZ-KIT Lite also are brought up from 
J2 to the extender. 
Use the expansion II PPI connector and LSIO connector on the 
ADSP-BF526 EZ-Board/ EZ-KIT Lite for the extender to function 
properly.
PPI Stamp Connector (J3)
The PPI stamp connector (J3) connects the Landscape LCD EZ-Extender 
to the PPI, SPI, TWI, and GPIO pins of the Blackfin processor. 
J3 also 
connects the extender with the reset, power, and ground lines of the 
ADSP-BF537, ADSP-BF538, and ADSP-BF548 processors. Use 
J3 to 
connect the extender to the ADSP-BF537, ADSP-BF538, and 
ADSP-BF548 EZ-KIT Lites. When using 
J3, do not use J1 and J2. 
						

							Connectors
2-14 Blackfin Landscape LCD EZ-Extender Manual
LCD Connector (P1)
The LCD connector (P1) is used to attach the LCD display to the Land-
scape LCD EZ-Extender. The two backlight power pins, four resistive 
touch pins, LCD SPI interface, and well as the data, sync, and clock pins 
of the LCD display are extracted from the cable and connected to the 
extender.  
						

							Blackfin Landscape LCD EZ-Extender Manual A-1 
A LANDSCAPE LCD 
EZ-EXTENDER BILL OF 
MATERIALS
The bill of materials corresponds to “Landscape LCD EZ-Extender Sche-
matic” on page B-1.
Ref. Qty. Description Reference 
DesignatorManufacturer Part Number
1 1 SN74LVC1G125 
SOT23-5U4 TI 74LVC1G125DBVRE4
2 1 5MHZ OSC003 U2 EPSON SG-8002CA-MP
3 1 MIC94040 MLF4 U6 MICREL MIC94040YFL
4 1 M24C02 
TSSOP8DWU5 ST MICRO M24C02-RDW6TP
5 1 ADP1611 MSOP8 VR1 ANALOG 
DEVICESADP1611ARMZ-R7
6 1 AD7879 
LFCSP_VQ16U1 ANALOG 
DEVICESAD7879ACPZ-500R7
7 1 AD7147-1 
LFCSP_VQ24U3 ANALOG 
DEVICESAD7147ACPZ-1500RL7
8 6 IDC 3X2 
IDC3X2_SMTJP2-3,JP5,JP8, 
JP10-11SAMTEC TSM-103-01-T-DV
9 1 FPC 67PIN 
CON063P1 KYOCERA 
ELCO046281267212846+
10 1 IDC 35X2 
IDC35x2_SMT_FJ1 SAMTEC SSW-135-22-F-D-VS
11 1 IDC 25X2 
IDC25x2_SMT_FJ2 SAMTEC SSW-125-22-F-D-VS 
						

							A-2 Blackfin Landscape LCD EZ-Extender Manual
12 1 IDC 20X2 
IDC20x2_SMT_FJ3 SAMTEC SSW-120-22-F-D-VS
13 4 IDC 2X1 
IDC2X1_SMTJP1,JP6-7,JP9 SAMTEC TSM-102-01-T-SV
14 2 IDC 3X1 
IDC3X1_SMTJP12-13 SAMTEC TSM-103-01-T-SV
15 5 0.22UF 25V 10% 
0805C1,C14-17 AVX 08053C224KAT2A
16 1 0.1UF 50V 10% 
0805C27 AVX 08055C104KAT
17 1 600 100MHZ 
200MA 0603FER1 DIGI-KEY 490-1014-2-ND
18 4 0.1UF 10V 10% 
0402C31-32,C34-35 AVX 0402ZD104KAT2A
19 2 0.01UF 16V 10% 
0402C18-19 AVX 0402YC103KAT2A
20 15 10K 1/16W 5% 
0402R1-4,R7-8, 
R17-19,R21-24,
R26-27VISHAY CRCW040210K0FKED
21 10 2.2UF 10V 10% 
0805C2-3,C6-13 AVX 0805ZD225KAT2A
22 2 0.1UF 16V 
10%0603C23-24 AVX 0603YC104KAT2A
23 2 10K 1/10W 5% 
0603R10-11 VISHAY CRCW060310K0JNEA
24 1 100K 1/10W 5% 
0603R9 VISHAY CRCW0603100KJNEA
25 1 2.21K 1/10W 1% 
0603R14 DIGI-KEY 311-2.21KHRTR-ND
26 1 390PF 25V 5% 
0603C20 AVX 06033A391FAT2A Ref. Qty. Description Reference 
DesignatorManufacturer Part Number 
						

							Blackfin Landscape LCD EZ-Extender Manual A-3  Landscape LCD EZ-Extender Bill of Materials
27 2 10UF 10V 10% 
0805C30,C33 PANASONIC ECJ-2FB1A106K
28 1 1UF 50V 10% 
0603C22 DIGI-KEY 587-1257-1-ND
29 1 15uH 20% 
IND015L1 COILCRAFT MSS4020-153ML
30 3 .5A B0540W 
SOD-123D1-3 DIODES 
INCB0540W-7-F
31 1 .5A BZT52C33S 
SOD-323D4 DIODES 
INCBZT52C33S-7-F
32 5 2.2UF 25V 10% 
0805C4-5,C25-26, 
C28DIGI-KEY 490-3331-1-ND
33 1 51.1 1/16W 1% 
0402R12 DIGI-KEY 541-51.1LCT-ND
34 1 10000PF 25V10% 
0402C29 DIGI-KEY 399-1278-1-ND Ref. Qty. Description Reference 
DesignatorManufacturer Part Number 
						

							A-4 Blackfin Landscape LCD EZ-Extender Manual