Z80182 Datasheet, PDF (54/109 Pages) Zilog, Inc. – ZILOG INTELLIGENT PERIPHERAL CONTROLLER (ZIP™)

Zilog
PRELIMINARY
CONTROL REGISTERS (Continued)
Write Register 12
D7 D6 D5 D4 D3 D2 D1 D0
Write Register 14
D7 D6 D5 D4 D3 D2 D1 D0
Z80182/Z8L182
ZILOG INTELLIGENT PERIPHERAL
Write Register 13
D7 D6 D5 D4 D3 D2 D1 D0
TC0
TC1
TC2
TC3
Lower Byte of
TC4
Time Constant
TC5
TC6
TC7
TC8
TC9
TC10
TC11
TC12
TC13
TC14
TC15
Upper Byte of
Time Constant
0 0 0 Null Command
0 0 1 Enter Search Mode
0 1 0 Reset Missing Clock
0 1 1 Disable DPLL
1 0 0 Set Source = BR Generator
1 0 1 Set Source = /RTxC
1 1 0 Set FM Mode
1 1 1 Set NRZI Mode
BR Generator Enable
BR Generator Source
/DTR/Request Function
Auto Echo
Local Loopback
Write Register 15
D7 D6 D5 D4 D3 D2 D1 D0
WR7' SDLC Feature Enable
Zero Count IE
SDLC FIFO Enable
DCD IE
Sync/Hunt IE
CTS IE
Tx Underrun/EOM IE
Break/Abort IE
Figure 52. Write Register Bit Functions (Continued)
3-54
DS971820600