upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 105

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

6.4.4
bit timer capture/compare register 000 (CR000).
bit 0 (TOE00) and bit 1 (TOC001) of 16-bit timer output control register 00 (TOC00) to 1. This enables a square wave
with any selected frequency to be output.
The basic operation setting procedure is as follows.
<1> Set the count clock by using the PRM00 register.
<2> Set the CRC00 register (see Figure 6-28 for the set value).
<3> Set the TOC00 register (see Figure 6-28 for the set value).
<4> Set any value to the CR000 register (0000H cannot be set).
<5> Set the TMC00 register to start the operation (see Figure 6-28 for the set value).
Caution Changing the CR000 setting during TM00 operation may cause a malfunction. To change the
Remarks 1. For the setting of the TO00 pin, see 6.3 (5) Port mode register 2 (PM2) and port mode control
A square wave with any selected frequency can be output at intervals determined by the count value preset to 16-
The TO00 pin output status is reversed at intervals determined by the count value preset to CR000 + 1 by setting
PRM00
CRC00
Setting
Square-wave output operation
ES110
0/1
7
0
2. For how to enable the INTTM000 interrupt, see CHAPTER 10 INTERRUPT FUNCTIONS.
setting, refer to 6.5 Cautions Related to 16-Bit Timer/Event Counter 00 (17) Changing compare
register during timer operation.
register 2 (PMC2).
ES100
0/1
6
0
Figure 6-28. Control Register Settings in Square-Wave Output Mode (1/2)
ES010
0/1
5
0
ES000
0/1
4
0
(b) Capture/compare control register 00 (CRC00)
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
(a) Prescaler mode register 00 (PRM00)
3
0
3
0
CRC002
0/1
2
0
User’s Manual U16994EJ3V0UD
CRC001
PRM001
0/1
0/1
CRC000
PRM000
0/1
0
Selects count clock.
Setting invalid (setting “10” is prohibited.)
Setting invalid (setting “10” is prohibited.)
CR000 used as compare register
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