UMA1002 Datasheet, PDF (22/36 Pages) NXP Semiconductors – Data processor for cellular radio DPROC2

Philips Semiconductors
Data processor for cellular radio
(DPROC2)
Product specification
UMA1002
handbook, full pagewidth
TXLINE
DPROC2 DPROC2
holds LOW releases
TXLINE TXLINE
word 1
DPROC2
holds LOW
TXLINE
word 2
arbitration failure
Busy/Idle stream
remains Idle
after 104 bits
I² C-bus
send
TXRST
to DPROC2 ^DPROC2
ready for
new transmisson
TXHOLD
DPROC2 data
BUSY
TXCTRL
I² C-bus
dotting
30
W.S. DCC word 1 Parity word 1
repeat1
repeat 2
11 7
36
12 truncated
104 bits
has to be controlled
by system controller
TXIP
TXABRT
MEA172
Fig.10 DPROC data transmission timing/microcontroller interface during arbitration failure.
1997 Jan 28
22