DS80C390_00 Datasheet, PDF (46/155 Pages) Dallas Semiconductor – High-Speed Microcontroller User’s Guide Supplement

DS80C390 High-Speed Microcontroller User’s Guide Supplement
Slave Address Register 0 (SADDR0)
7
6
5
4
3
2
1
0
SFR A9h SADDR0 SADDR0 SADDR0 SADDR0 SADDR0 SADDR0 SADDR0 SADDR0
.7
.6
.5
.4
.3
.2
.1
.0
RW-0 RW-0 RW-0 RW-0 RW-0 RW-0 RW-0 RW-0
R=Unrestricted Read, W=Unrestricted Write, -n=Value after Reset
SADDR0.7-0
Bits 7-0
Slave Address Register 0. This register is programmed with the given or
broadcast address assigned to serial port 0.
Slave Address Register 1 (SADDR1)
7
6
5
4
3
2
1
0
SFR AAh SADDR1 SADDR1 SADDR1 SADDR1 SADDR1 SADDR1 SADDR1 SADDR1
.7
.6
.5
.4
.3
.2
.1
.0
RW-0 RW-0 RW-0 RW-0 RW-0 RW-0 RW-0 RW-0
R=Unrestricted Read, W=Unrestricted Write, -n=Value after Reset
SADDR1.7-0
Bits 7-0
Slave Address Register 1. This register is programmed with the given or
broadcast address assigned to serial port 1.
CAN 0 Message Center 1 Control Register (C0M1C)
7
6
5
4
3
SFR ABh MSRDY ETI
ERI INTRQ EXTRQ
RW-0 RW-0 RW-0 RW-0 RC-0
2
MTRQ
R*-0
1
ROW/TIH
R*-0
0
DTUP
R*-0
R=Unrestricted Read, C=Clear Only, *= See description below, -n=Value after Reset
MSRDY
Bit 7
CAN 0 Message Center 1 Ready. This bit is used by the Microcontroller to
prevent the CAN module from accessing message center 1 while the
microcontroller is updating message attributes. These include as identifiers
(arbitration registers 0-3), data byte registers 0-7, data byte count (DTBYC3-
DTBYC0), direction control (T/R), the extended or standard mode bit
(EX/ST), and the mask enables (MEME and MDME) associated with this
message center. When this bit is 0, the CAN 0 processor will ignore this
message center for transmit, receive, or remote frame request operations.
MSRDY is cleared following a microcontroller hardware reset or a reset
generated by the CRST bit in the CAN 0 Control Register, and must also
remain in a cleared mode until all the CAN 0 initialization has been
completed. Individual message MSRDY controls can be changed after
initialization to reconfigure specific messages, without interrupting the
communication of other messages on the CAN 0 Bus.
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