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CHAPTER 12 CLOCK OUTPUT CONTROL CIRCUIT
12.1 Clock Output Control Circuit Functions
The clock output control circuit is intended for carrier output during remote controlled transmission and clock output
for supply to peripheral LSIs. The clock selected with the clock output selection register (CKS) is output from the
PCL/SGOA/P60 pin.
Figure 12-1 shows the clock output control circuit (CKU) block diagram.
Figure 12-1. Clock Output Control Circuit Block Diagram
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Selector
Clock control
circuit
CLOE CCS2 CCS1 CCS0
PM60
PCL/SGOA/P60
Clock output selection register (CKS)
Port mode register 6 (PM6)
P60
output latch
3
Internal bus
SGOA
Note
Note SGOA: Sound generator amplitude signal
12.2 Clock Output Control Circuit Configuration
The clock output control circuit (CKU) consists of the following hardware.
Table 12-1. Clock Output Control Circuit Configuration
Item
Configuration
Control register
Clock output selection register (CKS)
Port mode register 6 (PM6)
Содержание mPD780973 Series
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