PD72042B_15 Datasheet, PDF (36/92 Pages) Renesas Technology Corp – LSI DEVICE FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL

µPD72042B
UAR1
UAR2
Local station unit address register
Address : 0010B (2H) (UAR1)
0011B (3H) (UAR2)
Read/write : Write
When reset : Undefined (with the
previous data held)
UAR1 and UAR2 are registers used to set a local station unit address (12 bits) and condition code.
Set UAR1 and UAR2 after reset cancellation.
b7
b4
Local station address
(low-order 4 bits)
b3
Condition code
b0
UAR1
b7
b0
Local station address (high-order 8 bits)
UAR2
[Local station address]
A local station address is used as a master address when the local station performs communication as the master
unit. A local station address is used as a slave address when the local station performs communication as a slave.
[Condition code]
Bit position
b3, b2
b0
Condition code
00
01
10
11
0
1
Condition setting
Communication is performed in mode 0.
Communication is performed in mode 1.
Undefined
The slave transmission section is disabled.
The slave transmission section is enabled.
Remark Bit 1 of a condition code is not used. (Set the bit to either 0 or 1.)
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Data Sheet S13990EJ3V0DS