DS80C390_00 Datasheet, PDF (78/155 Pages) Dallas Semiconductor – High-Speed Microcontroller User’s Guide Supplement

DS80C390 High-Speed Microcontroller User’s Guide Supplement
CAN 1 Transmit Message Acknowledgement Register 1 (C1TMA1)
7
6
5
4
3
2
1
0
SFR DFh
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R=Unrestricted Read, -n=Value after Reset
Bit 7
C1TMA1.6
Bit 6
C1TMA1.5
Bit 5
C1TMA1.4
Bit 4
C1TMA1.3
Bit 3
C1TMA1.2
Bit 2
C1TMA1.1
Bit 1
C1TMA1.0
Bit 0
CAN 1 Transmit Message Acknowledgement Register 1. This register
indicates which of CAN 1 message centers 9-15 have successfully
transmitted a message since the last read of this register. A logic one in a
location indicates a message has been transmitted for that message center.
This register is automatically cleared to 00h when read. This register should
always be read in conjunction with the C1TMA0 register to ascertain the
status of all message centers.
Reserved
Message Center 15, Message Transmitted
Message Center 14, Message Transmitted
Message Center 13, Message Transmitted
Message Center 12, Message Transmitted
Message Center 11, Message Transmitted
Message Center 10, Message Transmitted
Message Center 9, Message Transmitted
Accumulator (A or ACC)
7
6
SFR E0h ACC.7 ACC.6
RW-0 RW-0
5
ACC.5
RW-0
4
ACC.4
RW-0
3
ACC.3
RW-0
2
ACC.2
RW-0
1
ACC.1
RW-0
0
ACC.0
RW-0
R=Unrestricted Read, W=Unrestricted Write, -n=Value after Reset
ACC.7-0
Bits 7-0
Accumulator. This register serves as the accumulator for arithmetic operations.
It is functionally identical to the accumulator found in the 80C32.
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