w83l950d Winbond Electronics Corp America, w83l950d Datasheet - Page 27

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

7.2
The Winbond keyboard controller defined another Advanced SFR area to expand the hardware control
registers without memory-mapped register. There are two registers, [Advance Index] and [Advance
Data], can be used to addressing this Advanced SFR register space. These two registers are located at
09Eh and 09Fh of the Standard SFR register area.
The addressing method is very similar with people well known Super I/O device. For example, if we
wish set SIRQ2 to 55h, set [Advance index] to 01h, and then set [Advance data] to 055h.
78h
70h
68h
60h
58h
50h
48h
40h
38h
30h
28h
20h
18h
10h
08h
00h
P3PS2DATA
P1PS2DATA
AKBCCTRL
Advanced SFR Address and Registers
AI2CHSR
PWM2PL
AI2CISR
SIRQ1
P3PS2CON
P1PS2CON
AI2CHCR
PWM2PH
AI2CFSR
SIRQ2
PWM2HSL
P3PS2STS
P1PS2STS
AI2CUDR
AI2CRBC
ADD1L
AI2C DFIFO
P3S2STS_2
PWM2HSH
AI2CSCR
ADD1H
- 18 -
P2PS2DATA
APWMCON
AI2C SADR
AI2CTST0
PWM3PL
ADD2L
P2PS2CON
AI2CTST1
AI2CHMR
PWM2PH
ADD2H
PWM2HSL
P2PS2STS
AI2CFCR
W83L950D
PWM2HSH
ADDCON
AI2CICR