UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 128

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

Specifications of UPD78F9222MC(T)-5A4-A

• Controller Family/series: UPD78
• No. Of I/o's: 17
• Ram Memory Size: 256Byte
• Cpu Speed: 10MHz
• No. Of Timers: 4
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

7.3
128
Symbol
TMC80
Address: FFCCH
8-bit timer 80 is controlled by 8-bit timer mode control register 80 (TMC80).
(1) 8-bit timer mode control register 80 (TMC80)
Register Controlling 8-bit Timer 80
This register is used to enable or stop the operation of 8-bit timer/counter 80 (TM80), and to set the count
clock of TM80.
This register is set by using a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears TMC80 to 00H.
Cautions 1. Be sure to set TMC80 after stopping the timer operation.
Remark f
TCL801
TCE80
TCE80
<7>
0
1
0
0
1
1
2. Be sure to clear bits 0 and 6 to 0.
XP
After reset: 00H
: Oscillation frequency of clock to peripheral hardware
Stop operation (clear TM80 to 00H).
Enable operation.
Figure 7-4. Format of 8-bit Timer Mode Control Register 80 (TMC80)
TCL800
0
1
0
1
6
0
f
f
f
f
XP
XP
XP
XP
R/W
/2
/2
/2
/2
6
8
10
16
5
0
CHAPTER 7 8-BIT TIMER 80
User’s Manual U16898EJ5V0UD
125 kHz
31.25 kHz
7.81 kHz
0.12 kHz
4
0
Control of operation of TM80
Selection of count clock of 8-bit timer 80
f
XP
= 8.0 MHz
3
0
TCL801
2
39.06 kHz
9.77 kHz
0.15 kHz
156.3 kHz
TCL800
f
XP
1
= 10.0 MHz
0
0