HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 224
HD6435348R
Manufacturer Part Number
HD6435348R
Description
Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
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Figure 10-12 shows this type of contention.
Contention between FRC Write and Increment: If an FRC increment pulse is generated during
the T
and the FRC is not incremented.
3
state of a write cycle to the lower byte of a free-running counter, the write takes priority
ø
Internal address bus
Internal write signal
FRC clear signal
FRC
Figure 10-12 FRC Write-Clear Contention
Write cycle: CPU writes to lower byte of FRC
T
1
N
FRC address
207
T
2
T
3
H'0000
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