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4559 Datasheet(PDF) 32 Page - Renesas Technology Corp

Part # 4559
Description  SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
PDF  148 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

4559 Datasheet(HTML) 32 Page - Renesas Technology Corp

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Rev.1.04
Aug 23, 2007
Page 32 of 146
REJ03B0188-0104
4559 Group
Fig 33. Timers structure (1)
XIN
ORCLK
XIN
ORCLK
W21
Timer 2 (8)
Reload register R2L (8)
Register B
(TAB2)
(T2AB)
Register A
(T2AB)
(T2AB)
(TAB2)
Timer 2
interrupt
11
10
01
00
W11, W10
PWMOUT
ORCLK
W12
W40
0
1
Timer 1 (8)
Reload register R1 (8)
Register B
(TAB1)
(T1AB)
Register A
(T1AB)
(T1AB)
(TAB1)
T1F
Timer 1
interrupt
Timer 1 underflow signal
(T1UDF)
T3UDF
00
01
10
11
MR3, MR2
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)
PA0
Reload register RPS (8)
Register B
(TABPS)
(TPSAB)
Register A
(TPSAB)
(TPSAB)
(TABPS)
(TR1AB)
10
01
(CRCK)
MR1, MR0
On-chip oscillator
Quartz-crystal
oscillation
XCIN
Multi-
plexer
Ceramic resonance
RC oscillation
D5/INT
I13
I12
0
1
I11
0
1
One-sided edge
detection circuit
Both edges
detection circuit
S
R
Q
I10
W13
T1UDF
C/CNTR
W11
W10
PWMOUT
Q
D
R T
W12
W41
T1UDF
I10
1
0
Port C output
W20
0
1
Reload register R2H (8)
Register B
Register A
Reload control circuit
“H” interval
expansion
W22
1
0
(T2R2L)
(T2HAB)
T2F
Q
R
T
W23
PWMOD
Data is set automatically from each reload register
when timer underflows (auto-reload function).
1/2
00



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