W925E625 Datasheet, PDF (29/75 Pages) Winbond – 8-bit CID MICROCONTROLLER

W925E/C625
FSK TRANSMIT DATA BUFFER
(initial=00H)
Bit:
7
6
5
4
3
2
1
0
FSKTB.7 FSKTB.6 FSKTB.5 FSKTB.4 FSKTB.3 FSKTB.2 FSKTB.1 FSKTB.0
Mnemonic: FSKTB
FSKTB.0: Only This bit will be latched and send out as FSK signal
Address: C7h
DIVIDER CONTROL
(initial=01H)
Bit:
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
DIVA
Mnemonic: DIVC
Address: C8h
DIVA: Divider available control bit. This bit is set or cleared by software to enable/disable divider.
DIVA=1 to enable the divider. DIVA=0 to disable the divider. DIVA is reset after reset.
PROGRAM STATUS WORD
(initial=00H)
Bit:
7
6
5
4
3
2
1
0
CY
AC
F0
RS1 RS0 OV
F1
P
Mnemonic: PSW
Address: D0h
CY: Carry flag. Set for an arithmetic operation, which results in a carry being generated from the
ALU. It is also used as the accumulator for the bit operations.
AC: Auxiliary carry. Set when the previous operation resulted in a carry from the high order nibble.
F0: User flag 0. General purpose flag that can be set or cleared by the user.
RS.1-0: Register bank select bits:
RS1
RS0
0
0
0
1
1
0
1
1
REGISTER BANK
0
1
2
3
ADDRESS
00-07h
08-0Fh
10-17h
18-1Fh
OV: Overflow flag. Set when a carry was generated from the seventh bit but not from the 8^th bit as a
result of the previous operation, or vice-versa.
F1: User Flag 1. General purpose flag that can be set or cleared by the user by software.
P: Parity flag. Set/cleared by hardware to indicate odd/even number of 1’s in the accumulator.
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Publication Release Date: July 4, 2005
Revision A10