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7542 Group
I/O
P0
/CMP
1
0
port
Compare 0 output
port bit
(001E
, bit 2)
16
Compare 0 output
level latch
(0021
Compare 1 output
level latch
(0021
Fig. 41 Block diagram at modulation mode
Rev.3.02
Oct 31, 2006
REJ03B0006-0302
Compare register
write pointer
(0012
16
Compare latch 00, 01
re-load bit
(0014
16
Compare 0 output
Compare 0 trigger
status bit
enable bit
(0022
, bit 0)
(0021
16
Output latch
, bit 0)
16
Compare 1 output
Compare 1 trigger
status bit
enable bit
(0022
, bit 1)
(0021
16
Output latch
, bit 1)
16
Compare latch 10, 11
re-load bit
(0014
16
Compare register
write pointer
(0012
16
Page 38 of 134
, bits 0 to 2)
Compare buffer 00 (16)
, bit 0)
Compare latch 00 (16)
, bit 4)
16
, bit 5)
16
Compare latch 10 (16)
, bit 1)
Compare buffer 10 (16)
, bits 0 to 2)
Data bus
Compare buffer 01 (16)
Compare latch 01 (16)
Compare register
Timer A counter (16)
Compare 0 (1)
timer source bits
(001F
, bit 0 (bit 1)
16
Timer B counter (16)
Compare register
Compare latch 11 (16)
Compare buffer 11 (16)
Data bus
Underflow
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