upd75112 Renesas Electronics Corporation., upd75112 Datasheet - Page 17

• Manufacturer Part Number: upd75112
• Description: 4-bit Single Chip-microcomputer
• Manufacturer: Renesas Electronics Corporation.

5.3 Clock Output Circuit
The clock output circuit is a circuit to generate clock
pulses from the P22/PCL pin. It is used to supply the
peripheral LSIs with clock pulses.
operation)
The clock output cicuit configuration is shown as the
following.
Figure 5-2 Clock Output Circuit Configuration
5.4 Basic Interval Timer
The basic interval timer has the following functions;
Clock output (PCL): , 524 kHz, 262 kHz (at 4.19 MHz
Interval timer operation to generate reference
time interrupts
Watchdog timer application to detect program
overrun
Wait time selection and count when the standby
mode is released
Count content read
From the Clock
Generator
fxx/2
fxx/2
CLOM3
3
4
0
4
CLOM1 CLOM0
Selector
CLOM
Internal Bus
P22
Output Latch
PORT2.2
Output Buffer
Port 2 Input/
Output Mode
Specification Bit
PMGB Bit 2
PD75112, 75116
P22/PCL
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