Clock Output Circuit; Clock Output Circuit Configuration - NEC PD75402A User Manual

5.3

CLOCK OUTPUT CIRCUIT

The clock output circuit outputs clock pulses from the P22/PCL pin, and is used to supply clock pulses to peripheral
LSIs, etc.
5.3.1

Clock Output Circuit Configuration

The configuration of the clock output circuit is shown in Fig. 5-18.
From Clock
Generation
Circuit
6
f /2
XX
CLOM3 0
Remarks When switching between clock output enabled/disabled states, consideration has been given to ensuring
that a short pulse is not output.
CHAPTER 5. PERIPHERAL HARDWARE FUNCTIONS
Fig. 5-18 Clock Output Circuit Configuration
Selector
CLOM1 CLOM0 CLOM
4
Internal Bus
Output
Buffer
PORT2.2 PMGB Bit 2
P22 Port 2 Input/
Output Output Mode
Latch Specification Bit
P22/PCL
63