PD72042B_15 Datasheet, PDF (32/92 Pages) Renesas Technology Corp – LSI DEVICE FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL

µPD72042B
Table 4-1 µPD72042B Registers
(a) Write registers
Address
0H
0000
1H
0001
2H
0010
3H
0011
4H
0100
5H
0101
6H
0110
7H
0111
8H
1000
EH
1110
Name
High-order 4 bits
Low-order 4 bits
Note Reference page
CTR
–
–
– REEN SRST –
– STREQ A
p. 31
CMR
0 LOCK
BUFC
COMC
C
p. 32
1
0
0
0
0 IRS MFC DERC
UAR1
Local station address
(low-order 4 bits)
Condition code
B
p. 34
UAR2
Local station address (high-order 8 bits)
B
p. 34
SAR1
Slave address
(low-order 4 bits)
0
0
0
0
D
p. 35
SAR2
Slave address (high-order 8 bits)
D
p. 35
MCR Broadcast bits Number of
arbitrations
Control bits
D
p. 36
–
–
–
–
–
–
–
–
TBF
Number of bytes of transmission data, transmission data
F
p. 38
(b) Read registers
Address
0H
0000
1H
0001
2H
0010
3H
0011
4H
0100
5H
0101
6H
0110
7H
0111
8H
1000
EH
1110
Name
STR
FLG
RDR1
RDR2
LOR1
LOR2
DAR1
DAR2
RCR
RBF
High-order 4 bits
Low-order 4 bits
Note Reference page
TFL TEP RFL REP
–
A
p. 39
– MARQ STRQ SLRE CEX RAW STM IRQ A
p. 40
Number of bytes of master reception data
A
p. 42
Number of bytes of slave reception data or
broadcast reception data
A
p. 42
Lock address (low-order 8 bits)
H
p. 43
Lock state
Lock address
H
p. 43
(high-order 4 bits)
Broadcast address
(low-order 4 bits)
–
E
p. 44
Broadcast address (high-order 8 bits)
E
p. 44
Return codes (MARC, SLRC)
A
p. 45
Transmitter address, reception data
G
p. 57
Note Writable and readable periods of the registers of the µPD72042B
A: Arbitrary
B: After system reset cancellation
C: While CEX of the FLG register (address 0001) is set to 0
D: While MARQ of the FLG register (address 0001) is set to 0
E: After SLRC of the RCR register (address 1000) is set to 1100 (broadcast reception error)
F: While TFL of the STR register (address 0000) is set to 0
G: While REP of the STR register (address 0000) is set to 0
H: When CEX of the FLG register (address 0001) is set to 0 after LOCK of the CMR register (address 0001)
is set to 1
30
Data Sheet S13990EJ3V0DS