w83l950d Winbond Electronics Corp America, w83l950d Datasheet - Page 66

• Manufacturer Part Number: w83l950d
• Description: Peripheral Personal Computer Keyboard Controller
• Manufacturer: Winbond Electronics Corp America

13.3 Serial I/O 2 control register (SIO2CON)
Transfer clock
Serial I/O2 output S
Serial input S
Receive enable signal
S
Serial I/O2 register write
signal
(Note 1)
RDY2
SFR address
Default value
Bit 7: Comparator reference input selection bit.
Bit 6: Serial I/O2 synchronous clock selection bit.
Bit 5: Transfer direction selection bit.
Bit 4:
Bit 3: Serial I/O2 port selection bit
SRDY
IN2
= 0: P00 /P3ref input.
= 1: Reference input fixed.
= 0: external clock.
= 1: internal clock.
= 0: LSB first.
= 1: MSB first.
= 0: I/O port.
= 1:
= 0: I/O port.
SRDY
2
OUT2
output enable bit.
0xCD
0x00
2
signal output.
D0
Fig.12.6 Serial I/O 2 Timing
D1
D2
- 57 -
D3
Publication Release Date: June 23, 2003
D4
Serial I/O2 interrupt request bit set
D5
W83L950D
D6
Revision 1.0
D7
(Note 2)