W6692 Datasheet, PDF (70/104 Pages) Winbond – PCI Bus ISDN S/T-Controller

Preliminary Data Sheet
W6692 PCI ISDN S/T-Controller
On write operation, the data are driven to pins IO3-2 only if PCTL:OE1=1.
IO5-4 Read or Write Data of Pins IO5-4
On read operation, these are the present values of pins IO5-4.
On write operation, the data are driven to pins IO5-4 only if PCTL:OE2=1.
IO7-6 Read or Write Data of Pins IO7-6
On read operation, these are the present values of pins IO7-6.
On write operation, the data are driven to pins IO7-6 only if PCTL:OE3=1.
XMODE = 1: 8-bit multiplexed microprocessor mode
7
6
5
4
3
2
1
0
XA7 XA6 XA5 XA4 XA3 XA2 XA1 XA0
XA7-0 Peripheral Address
To access peripheral device, first write the peripheral address in this register and then perform read or write at XDATA
register. The address written in this register is output on XAD7-0 in address phase of data access and can be latched by XALE
signal.
8.1.34 Peripheral Data Register
XDATA
Value after reset: Undefined
The register content depends on PCTL:XMODE setting.
XMODE = 0 : Simple IO mode
7
6
5
4
3
2
IO10
IO9-8 Read or Write Data of Pins IO9-8
Input data of pins IO9-8 if PCTL:OE4=0.
Output data of pins IO9-8 if PCTL:OE4=1.
IO10 Read or Write Data of Pins IO10
Input data of pins IO10 if PCTL:OE5=0.
Output data of pins IO10 if PCTL:OE5=1.
XMODE = 1 : 8-bit multiplexed microprocessor mode
Read/Write
1
0
IO9
IO8
Address F8H/3EH
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Publication Release Date: Sep 30, 1999
Revision 0.9