W83697HF Datasheet, PDF (146/167 Pages) Winbond – WINBOND I/O

W83697HF/F
CR23 (Default 0x00)
Bit 7 ~ 1 : Reserved.
Bit 0 : IPD (Immediate Power Down). When set to 1, it will put the whole chip into power down
mode immediately.
CR24 (Default 0x00)
Bit 7 : Reserved.
Bit 6 : CLKSEL(Enable 48Mhz)
= 0 The clock input on Pin 1 should be 24 Mhz.
= 1 The clock input on Pin 1 should be 48 Mhz.
The corresponding power-on setting pin is SOUTB (pin 61).
Bit[5:4] : ROM size select
=00 1M
=01 2M
=10 4M
=11 Reserved
Bit 3 :MEMW# Select (PIN97)
= 0 MEMW# Disable
= 1 MEMW# Enable
Bit 2 :Reserved
Bit 1 : Enable Flash ROM Interface
= 0 Flash ROM Interface is enabled after hardware reset
= 1 Flash ROM Interface is disabled after hardware reset
This bit is read only, and set/reset by power-on setting pin. The corresponding power-on
setting pin is PENROM#(pin 52)
Bit 0 : PNPCSV
= 0 The Compatible PnP address select registers have default values.
= 1 The Compatible PnP address select registers have no default value.
The corresponding power-on setting pin is DTRA# (pin 50).
CR25 (Default 0x00)
Bit 7 ~ 4 : Reserved
Bit 3 : URBTRI
Bit 2 : URATRI
Bit 1 : PRTTRI
Bit 0 : FDCTRI.
- 137 -
Publication Release Date: Feb. 2002
Revision 0.70