W83781D Datasheet, PDF (37/53 Pages) Winbond – MONITORING IC

W83781D
PRELIMINARY
8.18 Register 50h ~ 5Fh Bank Select -- Index 4Eh (No Auto Increase) (Bank 0)
Register Location:
Power on Default Value
Attribute:
Size:
4Eh
<6:3> = Reserved, <7> = 1, <2:0> = 0. Reset by MR
Read/Write
8 bits
7 6 5 4 32 1 0
BANKSEL0
BANKSEL1
BANKSEL2
Reserved
Reserved
Reserved
Reserved
HBACS
Bit 7: HBACS- High byte access. Set to 1, access Register 4Fh high byte register.
Set to 0, access Register 4Fh low byte register. Default 1.
Bit 6-3: Reserved. This bit should be set to 0.
Bit 2-0: Index ports 0x50~0x5F Bank select.
8.19 Winbond Vendor ID -- Index 4Fh (No Auto Increase) (Bank 0)
Register Location:
Power on Default Value
Attribute:
Size:
4Fh
<15:0> = 5CA3h
Read Only
16 bits
15
87
0
VIDH
VIDL
Bit 15-8: Vendor ID High Byte if CR4E.bit7=1.Default 5Ch.
Bit 7-0: Vendor ID Low Byte if CR4E.bit7=0. Default A3h.
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Publication Release Date : Nov. 1997
Revision 0.60