HD6433935 Hitachi, HD6433935 Datasheet - Page 230

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

TCG cannot be read or written by the CPU. It is initialized to H'00 upon reset.
Note: * An input capture signal may be generated when TMIG is modified.
2. Input capture register GF (ICRGF)
ICRGF is an 8-bit read-only register. When a falling edge of the input capture input signal is
detected, the current TCG value is transferred to ICRGF. If IIEGS in TMG is 1 at this time,
IRRTG is set to 1 in IRR2, and if IENTG in IENR2 is 1, an interrupt request is sent to the CPU.
For details of the interrupt, see 3.3, Interrupts.
To ensure dependable input capture operation, the pulse width of the input capture input signal
must be at least 2ø or 2ø
ICRGF is initialized to H'00 upon reset.
3. Input capture register GR (ICRGR)
ICRGR is an 8-bit read-only register. When a rising edge of the input capture input signal is
detected, the current TCG value is transferred to ICRGR. If IIEGS in TMG is 1 at this time,
IRRTG is set to 1 in IRR2, and if IENTG in IENR2 is 1, an interrupt request is sent to the CPU.
For details of the interrupt, see 3.3, Interrupts.
To ensure dependable input capture operation, the pulse width of the input capture input signal
must be at least 2ø or 2ø
ICRGR is initialized to H'00 upon reset.
218
Bit:
Initial value:
Read/Write:
Bit:
Initial value:
Read/Write:
ICRGR7
ICRGF7
R
R
7
0
7
0
SUB
SUB
ICRGR6
ICRGF6
(when the noise canceler is not used).
(when the noise canceler is not used).
R
R
6
0
6
0
ICRGF5
ICRGR5
R
R
5
0
5
0
ICRGR4
ICRGF4
R
R
4
0
4
0
ICRGR3
ICRGF3
R
R
3
0
3
0
ICRGR2
ICRGF2
R
R
2
0
2
0
ICRGR1
ICRGF1
R
R
1
0
1
0
ICRGR0
ICRGF0
R
R
0
0
0
0