w83977ctf Winbond Electronics Corp America, w83977ctf Datasheet - Page 70

• Manufacturer Part Number: w83977ctf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

4.2.10 Bank1.Reg2 - Version ID Regiister I (VID)
Power on default <7:0> = 0001,0000 binary
4.2.11 Bank0~3.Reg3 - CIR Control Register 0/Bank Select Register (CTR0/BSR)
This register is defined same as in Bank0.Reg3.
4.2.12 Bank1.Reg4 - Timer Low Byte Register (TMRL)
Power on default <7:0> = 0000,0000 binary
4.2.13 Bank1.Reg5 - Timer High Byte Register (TMRH)
Power on default <7:0> = 0000,0000 binary
7-0
7-0
7-4
3-0
Bit
Bit
Bit
(BANK0~3)
VID
TMRL
Reserved
TMRH
Name
Name
Name
Read/Write
Read Only
Read/Write
Read/Write
Read/Write
Read/Write
Version ID, default is set to 0x10.
Timer Low Byte Register. This is a 12-bit timer (another
4-bit is defined in Bank1.Reg5) for which resolution is 1
ms, that is, the programmed maximum time is 2
ms. The timer is a down-counter. The timer starts down
count when the bit EN_TMR (Enable Timer) of
Bank0.Reg2. is set to 1. When the timer down counts to
zero and EN_TMR=1, the TMR_I is set to 1. When the
counter down counts to zero, a new initial value will be
re-loaded into the timer counter.
Reserved.
Timer High Byte Register. See Bank1.Reg4.
-61 -
Publication Release Date: March 1999
Description
Description
Description
W83977EF/ CTF
PRELIMINARY
Revision A1
12
-1