参数资料
型号: 7549
厂商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 单芯片8位CMOS微机
文件页数: 32/73页
文件大小: 1272K
代理商: 7549
Rev.2.00
REJ03B0202-0200
Mar 05, 2007
Page 32 of 70
7549 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Fig 39. Block diagram of capture channel 0
Fig 40. Capture input waveform (capture interrupt edge selection bit = “rising edge”)
Fig 41. Capture input waveform (capture interrupt edge selection bit = “rising and falling edge”)
Data bus
Capture register
Capture/Compare
register RW pointer
(0012
16
, bits 0-2)
Capture latch 0 (16)
Capture trigger
Capture pointer
Capture latch 0x
software trigger bits
(0031
16
, bits 0, 1)
P0
3
/
CAP
0
Capture latch 00 (16) Capture latch 01 (16)
Rising
Falling
Capture 0 interrupt
edge selection bits
(0032
16
, bits 0, 1)
Capture Interrupt
Timer A counter (16)
Digital filter
Capture 0 status bit
(002F
16
, bit 3)
Low-speed on-chip
oscillator/16
Capture 0 noise filter
clock selection bits
(0032
16
, bits 2, 3)
Capture 0 input
port selection bit
(002E
16
, bit 0)
Timer A underflow
Capture input wave
Timer A count value
Capture latch 00
000B
000C
000D
000E
000F
0000
0002
0003
0004
0005
0006
0007
0008
0009
000B
000C
XXXX
Re-load the timer A count value
Capture latch 01
Capture 0 interrupt
Capture 0 status bit
XXXX
1
0
1
000A
0001
000C
0005
000F
0
1
0
Overwrite
0001
000A
Timer A underflow
000B
000C
000D
000E
000F
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
000A
000B
000C
XXXX
XXXX
1
0
1
000A
0001
000C
0005
000F
0
1
0
Capture input wave
Timer A count value
Capture latch 00
Capture latch 01
Capture 0 interrupt
Capture 0 status bit
Re-load the timer A count value
Overwrite
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