參數(shù)資料
型號: M34559G6
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機(jī)的CMOS
文件頁數(shù): 32/148頁
文件大?。?/td> 1732K
代理商: M34559G6
Rev.1.04
REJ03B0188-0104
Aug 23, 2007
Page 32 of 146
4559 Group
Fig 33. Timers structure (1)
X
IN
ORCLK
X
IN
ORCLK
W2
1
Timer 2 (8)
Reload register R2L (8)
(T2AB)
(T2AB)
Register B
(TAB2)
Register A
(T2AB)
(TAB2)
Timer 2
interrupt
11
10
01
00
W1
1
, W1
0
PWMOUT
ORCLK
T3UDF
W1
2
W4
0
0
1
Timer 1 (8)
Reload register R1 (8)
(T1AB)
(T1AB)
Register B
(TAB1)
Register A
(T1AB)
(TAB1)
T1F
Timer 1
interrupt
Timer 1 underflow signal
(T1UDF)
00
01
10
11
MR
3
, MR
2
Division circuit
Divided by 8
Divided by 4
Divided by 2
Internal clock
generating circuit
(divided by 3)
System clock (STCK)
Instruction clock
(INSTCK)
Prescaler (8)
PA
0
Reload register RPS (8)
(TPSAB)
(TPSAB)
Register B
(TABPS)
Register A
(TPSAB)
(TABPS)
(TR1AB)
10
01
(CRCK)
MR
1
, MR
0
On-chip oscillator
Quartz-crystal
oscillation
X
CIN
Multi-
plexer
Ceramic resonance
RC oscillation
D
5
/INT
I1
3
I1
2
0
1
I1
1
0
1
One-sided edge
detection circuit
Both edges
detection circuit
S
R
Q
I1
0
W1
3
T1UDF
C/CNTR
W1
1
W1
0
PWMOUT
Q
D
RT
W1
2
W4
1
T1UDF
I1
0
1
0
Port C output
W2
0
0
1
Reload register R2H (8)
Register B
Register A
Reload control circuit
“H” interval
expansion
W2
2
1
0
(T2R2L)
(T2HAB)
T2F
Q
R
T
W2
3
PWMOD
Data is set automatically from each reload register
when timer underflows (auto-reload function).
1/2
00
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