Fujitsu Series 3 Manual

 
5. Registers of the Watch Counter 
 
FUJITSU SEMICONDUCTOR LIMITED 
CHAPTER: Watch Counter 
FUJITSU SEMICONDUCTOR CONFIDENTIAL  12 
[bit19:18] CS1 to CS0 : Count clock select bits  These bits select a clock for the watch counter. 
Change these bits when WCCR : WCEN=0 (watch counter operation disabled) and WCOP=0 (watch 
counter stopped). 
bit19 bit18 Explanation 
0 0 Selects WCCK0 as a count clock. 
0  1 Selects WCCK1 as a count clock. 
1  0 Selects WCCK2 as a count clock. 
1  1 Selects WCCK3 as a...

 
 
 
 FUJITSU SEMICONDUCTOR LIMITED 
MN706-00002-1v0-E 
386 
MB9Axxx/MB9Bxxx  Series  

 
1. Overview 
 
Chapter: Base Timer I/O Select Function 
This chapter explains about base timer I/O function. 
 
1.
 Overview 
2. Configuration 
3. I/O Mode 
4. Registers 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CODE: 9BFBTSEL-E01.2_FW14-J00.3 
FUJITSU SEMICONDUCTOR LIMITED 
CHAPTER  14-1: Base Timer  I/O Select  Function 
MN706-00002-1v0-E 
387 
MB9Axxx/MB9Bxxx  Series  

 
1. Overview 
 
1. Overview 
The base timer I/O select function sets the I/O mode, and thereby determines the method to 
input and output signals (external clock, external start trigger, and waveform) to/from the base 
timer. 
By switching timer function, each channel of the base timer can be also used as one of the 
following timers: 
- 16-bit PWM timer 
- 16-bit PPG timer 
- 16/32-bit reload timer 
- 16/32-bit PWC timer 
 Overview 
One of the following 9 types of I/O modes can be selected for each 2...

 
2. Configuration 
 
2. Configuration 
The base timer I/O select function consists of the following blocks. 
 Block diagram 
Figure 2-1  shows the block diagram of the base timer I/O select function. 
 
Figure 2-1 Block diagram of base timer I/O select function 
 
Internal bus
Registers
Base timer  ch.3
Base timer  ch.2
Base timer  ch.1
Base timer  ch.0
I/O select
TIOA0 TIOB0 TIOA1 TIOB1 TIOA2 TIOB2 TIOA3 TIOB3
Base timer ch.15
TIOA15
TIOB15
Base timer
I/O Select function
  
 
  I/O select 
A circuit...

 
3. I/O Mode 
 
3. I/O Mode 
This section explains pins used by the base timer I/O select function to set the I/O mode, and 
also explains each I/O mode. 
3.1 Pins 
3.2  I/O mode 
 
FUJITSU SEMICONDUCTOR LIMITED 
CHAPTER  14-1: Base Timer  I/O Select  Function 
MN706-00002-1v0-E 
390 
MB9Axxx/MB9Bxxx  Series  

 
3. I/O Mode 
 
3.1. Pins 
This section explains pins used by the base timer I/O select function to set the I/O mode. 
Each channel of the base timer has 2 types of external pins and 5 types of internal signals. Also base timer 
I/O select function has 2 types of internal signals. By connecting an internal signal with an external pin, the 
signal corresponding to the connected (external clock (ECK signal)/external startup trigger (TGIN 
signal)/waveform (TIN signal)) is input or output to/from the base...

 
3. I/O Mode 
 
 Connecting the external pin to the internal signal 
The external pin and internal signal can be connected by setting the I/O mode of the base timer. 
Ta b l e  3 - 1  shows the correspondence between I/O modes and pin connections. 
Table 3-1 Correspondence between I/O modes and pin connections 
TIOAn 
(Even channel)  TIOBn 
(Even channel)  TIOAn+1 
(Odd channel)  TIOBn+1 
(Odd channel) 
I/O 
mode 
Connected to I/O Connected toI/O Connected toI/O Connected to I/O 
0 Ch.n TOUT  Output...

 
3. I/O Mode 
 
3.2. I/O mode 
I/O mode selected by the I/O Select Register (BTSEL) determines the functions of external 
pins and the start/stop timing of the base timer. 
 I/O mode 0 (Standard 16-bit timer mode) 
This mode uses each channel of the base timer individually. 
Ta b l e  3 - 2  shows the external pins used when this mode is selected. 
Table 3-2 External pins used when I/O mode 0 is selected. 
 Even channel Odd channel 
Number of input pins  1 1 
Number of output pins  1 1 
 
Ta b l e  3 -...

 
3. I/O Mode 
 
 I/O mode 1 (timer full mode) 
This mode assigns every even channel signal with an external pin individually. 
Ta b l e  3 - 5  shows the external pins used when this mode is selected. 
Table 3-5 External pins used when I/O mode 1 is selected. 
 Even channel 
Number of input pins  3 
Number of output pins  1 
 
Ta b l e  3 - 6  shows the internal signals to which the external pins connect, and signals input or output. 
Table 3-6 External pin connections and input/output signals when I/O...