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H8/3003 Datasheet(PDF) 429 Page - Renesas Technology Corp

Part # H8/3003
Description  microcontroller (MCU)
PDF  715 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3003 Datasheet(HTML) 429 Page - Renesas Technology Corp

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12.2.2 Timer Control/Status Register (TCSR)
TCSR is an 8-bit readable and writable*1 register. Its functions include selecting the timer mode
and clock source.
Bits 7 to 5 are initialized to 0 by a reset and in standby mode. Bits 2 to 0 are initialized to 0 by a
reset. In software standby mode bits 2 to 0 are not initialized, but retain their previous values.
Notes: 1. TCSR is write-protected by a password. For details see section 12.2.4, Notes on
Register Access.
2. Only 0 can be written, to clear the flag.
Bit
Initial value
Read/Write
7
OVF
0
R/(W)
6
WT/IT
0
R/W
5
TME
0
R/W
4
—
1
—
3
—
1
—
0
CKS0
0
R/W
2
CKS2
0
R/W
1
CKS1
0
R/W
Overflow flag
Status flag indicating overflow
Clock select
These bits select the
TCNT clock source
Timer mode select
Selects the mode
Timer enable
Selects whether TCNT runs or halts
Reserved bits
*2
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