Z80182 Zilog., Z80182 Datasheet - Page 51

• Manufacturer Part Number: Z80182
• Description: Z8018x Family MPU
• Manufacturer: Zilog.

CONTROL REGISTERS
DS971820600
Write Register 0 (non-multiplexed bus mode)
Zilog
Write Register 1
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
0
0
1
1
*
With Point High Command
0
1
0
1
Null Code
Reset Rx CRC Checker
Reset Tx CRC Generator
Reset Tx Underrun/EOM Latch
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
Null Code
Point High
Reset Ext/Status Interrupts
Send Abort (SDLC)
Enable Int on Next Rx Character
Reset Tx Int Pending
Error Reset
Reset Highest IUS
Rx Int Disable
Rx Int On First Character or Special Condition
Int On All Rx Characters or Special Condition
Rx Int On Special Condition Only
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Register 0
Register 1
Register 2
Register 3
Register 4
Register 5
Register 6
Register 7
Register 8
Register 9
Register 10
Register 11
Register 12
Register 13
Register 14
Register 15
Ext Int Enable
Tx Int Enable
Parity is Special Condition
WAIT/DMA Request On
Receive//Transmit
/WAIT/DMA Request Function
WAIT/DMA Request Enable
Figure 52. Write Register Bit Functions
*
P R E L I M I N A R Y
Write Register 2
Write Register 3
Write Register 4
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Rx 5 Bits/Character
Rx 7 Bits/Character
Rx 6 Bits/Character
Rx 8 Bits/Character
X1 Clock Mode
X16 Clock Mode
X32 Clock Mode
X64 Clock Mode
0
0
1
1
0
1
0
1
8-Bit Sync Character
16-Bit Sync Character
SDLC Mode (01111110 Flag)
External Sync Mode
0
0
1
1
0
1
0
1
Sync Modes Enable
1 Stop Bit/Character
1 1/2 Stop Bits/Character
2 Stop Bits/Character
Rx Enable
Sync Character Load Inhibit
Address Search Mode (SDLC)
Rx CRC Enable
Enter Hunt Mode
Auto Enables
Parity Enable
Parity EVEN//ODD
V0
V1
V2
V3
V4
V5
V6
V7
Z
ILOG
I
NTELLIGENT
Interrupt
Vector
Z80182/Z8L182
P
ERIPHERAL
3-51