UPD78F0138 NEC, UPD78F0138 Datasheet - Page 211

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

Cautions 1. When the Ring-OSC clock is selected as the clock to be supplied to the CPU, the clock of the
Remarks 1. f
2. Figures in parentheses apply to operation at f
2. When TMHE0 = 1, setting the other bits of the TMHMD0 register is prohibited.
3. In the PWM output mode, be sure to set 8-bit timer H compare register 10 (CMP10) when
X
Ring-OSC oscillator is divided and supplied as the count clock. If the count clock is the
Ring-OSC clock, the operation of 8-bit timer H0 is not guaranteed.
starting the timer count operation (TMHE0 = 1) after the timer count operation was stopped
(TMHE0 = 0) (be sure to set again even if setting the same value to the CMP10 register).
: X1 input clock oscillation frequency
CHAPTER 8 8-BIT TIMERS H0 AND H1
User’s Manual U16228EJ2V0UD
X
= 10 MHz
211