Z80182 Zilog., Z80182 Datasheet - Page 55

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

DS971820600
Zilog
Read Register 0
Read Register 1
Read Register 2
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Figure 52. Write Register Bit Functions (Continued)
Rx Character Available
Zero Count
Tx Buffer Empty
DCD
Sync/Hunt
CTS
Tx Underrun/EOM
Break/Abort
All Sent
Residue Code 2
Residue Code 1
Residue Code 0
Parity Error
Rx Overrun Error
CRC/Framing Error
End of Frame (SDLC)
V0
V1
V2
V3
V4
V5
V6
V7
Interrupt
Vector
P R E L I M I N A R Y
Read Register 6*
Read Register 3
Read Register 7*
D7
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
*Can only be accessed if the SDLC FIFO enhancement
SDLC FIFO Status and Byte Count (LSB)
*Can only be accessed if the SDLC FIFO enhancement
SDLC FIFO Status and Byte Count (LSB)
is enabled (WR15 bit D2 set to 1)
is enabled (WR15 bit D2 set to 1)
D6 D5 D4 D3
D2 D1 D0
0
0
0
Ext/Status IP
Tx IP
Rx IP
Z
0
0
BC8
BC9
BC10
BC11
BC12
BC13
FDA: FIFO Data Available
1 = Status Reads from FIFO
0 = Status Reads from EMSCC
FOS: FIFO Overflow Status
1 = FIFO Overflowed
0 = Normal
BC0
BC1
BC2
BC3
BC4
BC5
BC6
BC7
ILOG
I
NTELLIGENT
Z80182/Z8L182
P
ERIPHERAL
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