TDA8029 Philips Semiconductors, TDA8029 Datasheet - Page 21

• Manufacturer Part Number: TDA8029
• Description: Low power single card reader
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2003 Oct 30
handbook, full pagewidth
handbook, full pagewidth
Low power single card reader
UART modes 2 or 3 and SM2 = 1: there is an interrupt if REN = 1, RB8 = 1 and received address is equal to programmed address.
When own address is received, reset SM2 to receive the data bytes. When all data bytes are received, set SM2 to wait for the next address.
Fig.7 UART multiprocessor communication, automatic address recognition.
START
bit
D0
SM0/FE
SMOD1
D0
0 : SCON.7 = SM0
1 : SCON.7 = FE
D1
received address D0 to D7
SMOD0
SM1
programmed address
D1
D2
Fig.6 UART framing error detection.
SM0
1
1
SM2
-
D2
D3
Set FE bit if STOP bit is 0 (framing error)
SM0 to UART mode control
SM1
1
0
REN
POF
D3
DATA byte
D4
21
SM2
COMPARATOR
D4
TB8
GF1
1
D5
REN
D5
RB8
GF0
D6
1
TB8
D6
D7
X
PD
TI
D7
RB8
D8
IDL
RI
MODE 2, 3
only
D8
in
SCON
PCON
TI
(98h)
(87h)
MDB816
STOP
Product specification
bit
MDB817
RI
TDA8029
SCON
(98h)