z80c30 ZiLOG Semiconductor, z80c30 Datasheet - Page 55
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z80c30
Manufacturer Part Number
z80c30
Description
Cmos Scc Serial Communications Controller
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z80C30.pdf
(96 pages)
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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
* Modified in B Channel
Rx Character Available
Break/Abort
All Sent
End of Frame (SDLC)
V0
V7
Zero Count
Tx Buffer Empty
DCD
Sync/Hunt
CTS
Tx Underrun/EOM
Residue Code 2
Residue Code 1
Residue Code 0
Parity Error
Rx Overrun Error
CRC/Framing Error
V1
V2
V3
V4
V5
V6
Interrupt
Vector *
Read Register 3
Read Register 10
Read Register 12
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
* Always 0 in B Channel
Channel B Ext/Status IP
Channel B Tx IP
Channel B Rx IP
Channel A Ext/Status IP
Channel A Rx IP
0
0
On Loop
0
0
0
One Clocks Missing
TC0
TC1
TC2
TC3
TC5
TC7
Channel A Tx IP
0
Loop Sending
Two Clocks Missing
TC4
TC6
Lower Byte
of Time Constant
*