HD6473258CP10 Datasheet, PDF (295/301 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

HCSR—Handshake Control/Status Register
H’FFFE Handshaking
Bit
7
6
5
4
3
2
1
0
ISF ISIE OSE OSS LTE BSE —
—
Initial value 0
0
0
0
0
0
1
1
Read/Write R
R/W R/W R/W R/W R/W —
—
Busy Enable
0 BUSY output is disabled.
1 BUSY output is enabled.
Latch Enable
0 Input latches are disabled.
1 Input data are latched on falling edge of IS.
Output Strobe Select
0 OS is output when port 3 is read.
1 OS is output when port 3 is written.
Output Strobe Enable
0 OS output is disabled.
1 OS output is enabled.
Input Strobe Interrupt Enable
0 Input strobe interrupt is disabled.
1 Input strobe interrupt is enabled.
Interrupt Strobe Flag
0 Cleared by reading HCSR when ISF = 1, then reading or writing port 3.
1 Set when IS goes low.
299