UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 224

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

8.2 Configuration of 8-Bit Timer/Event Counters 50 and 51
(1) 8-bit timer counter 5n (TM5n)
224
8-bit timer/event counters 50 and 51 include the following hardware.
TM5n is an 8-bit register that counts the count pulses and is read-only.
The counter is incremented in synchronization with the rising edge of the count clock.
In the following situations, the count value is cleared to 00H.
<1> Reset signal generation
<2> When TCE5n is cleared
<3> When TM5n and CR5n match in the mode in which clear & start occurs upon a match of the TM5n and
Remark n = 0, 1
Timer register
Register
Timer input
Timer output
Control registers
CR5n.
Address: FF16H (TM50), FF1FH (TM51)
(n = 0, 1)
Symbol
TM5n
Item
Table 8-1. Configuration of 8-Bit Timer/Event Counters 50 and 51
CHAPTER 8 8-BIT TIMER/EVENT COUNTERS 50 AND 51
Figure 8-3. Format of 8-Bit Timer Counter 5n (TM5n)
8-bit timer counter 5n (TM5n)
8-bit timer compare register 5n (CR5n)
TI5n
TO5n
Timer clock selection register 5n (TCL5n)
8-bit timer mode control register 5n (TMC5n)
Port mode register 1 (PM1) or port mode register 3 (PM3)
Port register 1 (P1) or port register 3 (P3)
User’s Manual U17554EJ4V0UD
After reset: 00H
Configuration
R