z85c30 ZiLOG Semiconductor, z85c30 Datasheet - Page 37

• Manufacturer Part Number: z85c30
• Description: Cmos Scc Serial Communications Controller
• Manufacturer: ZiLOG Semiconductor

PS011705-0608
Read Register 13
D7 D6 D5 D4 D3 D2 D1 D0
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
Figure 20. Read Register Bit Functions
Figure 19. Read Register Bit Functions
TC8
TC15
TC9
TC10
TC11
TC12
TC13
TC14
Rx Character Available
Zero Count
Tx Buffer Empty
DCD
CTS
Break/Abort
All Sent
Residue Code 2
Residue Code 1
Residue Code 0
Rx Overrun Error
End of Frame (SDLC)
V0
V1
V2
V3
V5
V7
Sync/Hunt
Tx Underrun/EOM
Parity Error
CRC/Framing Error
V4
V6
Interrupt
Vector *
Upper Byte
of Time Constant
CMOS SCC Serial Communications Controller
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
Read Register 15
D7 D6 D5 D4 D3 D2 D1 D0
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
Product Specification
0
Break/Abort IE
Zero Count IE
0
DCD IE
Sync/Hunt IE
CTS IE
Tx Underrun/EOM IE
Lower Byte
of Time Constant
Functional Description
*
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