W83793G Datasheet, PDF (16/131 Pages) Winbond – Winbond H/W Monitor

W83793G
8. CONFIGURATION REGISTERS
8.1 ID, Bank Select Registers
W83793G inside resides three banks of registers, customer must set bank correctly so that correct
registers can be accessed. All the registers described here can be access in all banks.
8.1.1 ID, Bank Select Registers Map
Address 00_HEX, 0D_HEX, 0E_HEX, 0F_HEX in all three register banks are reserved as ID, Bank Select
registers.
MNEMONIC
REGISTER NAME
TYPE
BankSel.
Bank Select
RW
VendorID.
Winbond Vendor ID
RO
ChipID.
Winbond Chip ID
RO
DeviceID.
Winbond Device Version ID
RO
8.1.2 ID, Bank Select Register Details
8.1.2.1 Bank Select Register (Bank Select)
Three banks of registers are inside W83793G. The register bank could be selected by programming
Bank Select register. All Address 00_HEX in these there banks is defined as Bank Select register.
Location:
Type:
Reset:
Bank 0, 1, 2 Address 00_HEX
Read / Write
VSB5V (Pin 7) Rising,
Init Reset (CR40.Bit7) is set,
VDD5V (Pin 25) Rising @ RST_VDD_MD (CR40.Bit4) set,
SYSRSTIN_N (Pin 15) Falling @ SYSRST_MD (CR40.Bit5) set.
BIT
Name
Reset
7
HBACS
1
6
0_HEX
BANKSELECT
5
4
3
Reserve
2
1
0
BANK Select
0_HEX
BIT
DESCRIPTION
HBACS (High Byte Access)
7
0: Return the low byte while reading Winbond Vendor ID.
1: Return the high byte while reading Winbond Vendor ID.
6-3 Reserved.
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