HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 428
HD6413003RVF
Manufacturer Part Number
HD6413003RVF
Description
microcontroller (MCU)
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6413003RVF.pdf
(715 pages)
- Current page: 428 of 715
- Download datasheet (2Mb)
12.2 Register Descriptions
12.2.1 Timer Counter (TCNT)
TCNT is an 8-bit readable and writable* up-counter.
When the TME bit is set to 1 in TCSR, TCNT starts counting pulses generated from an internal
clock source selected by bits CKS2 to CKS0 in TCSR. When the count overflows (changes from
H'FF to H'00), the OVF bit is set to 1 in TCSR. TCNT is initialized to H'00 by a reset and when
the TME bit is cleared to 0.
Note: * TCNT is write-protected by a password. For details see section 12.2.4, Notes on Register
Bit
Initial value
Read/Write
Access.
R/W
7
0
R/W
6
0
R/W
5
0
410
R/W
4
0
R/W
3
0
R/W
2
0
R/W
1
0
R/W
0
0
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