TDA8029 Datasheet, PDF (30/59 Pages) NXP Semiconductors – Low power single card reader

Philips Semiconductors
TDA8029
Low power single card reader
Table 43: TOR3 - time-out register 3 (address Bh) bit allocation
Bit
7
6
5
4
3
Symbol
TOL23
TOL22
TOL21
TOL20
TOL19
Reset
0
0
0
0
0
Access
write
2
TOL18
0
1
TOL17
0
0
TOL16
0
Table 44: TOR3 - time-out register 3 (address Bh) bit description
Bit
Symbol
Description
7 to 0
TOL[23:16]
The upper 8-bits of the 16-bits counter or the upper 8-bits of the 24-bits counter.
8.10.1.4 Time-out configuration register (TOC)
The time-out counter is very useful for processing the clock counting during ATR, the
Work Waiting Time (WWT) or the waiting times defined in protocol T = 1. It should be
noted that the 200 and n_max clock counter (n_max = 384 for TDA8029HL/C1 and n_max = 368
for TDA8029HL/C2) used during ATR is done by hardware when the start session is set.
Specific hardware controls the functionality of BGT in T = 1 and T = 0 protocols and a
specific register is available for processing the extra guard time.
Writing to register TOC is not allowed as long as the card is not activated with a running
clock.
Before restarting the 16-bit counter (counters 3 and 2) by writing 61h, 65h, 71h, 75h, F1h
or F5h in the TOC register, or the 24-bit counter (counters 3, 2 and 1) by writing 68h or 7C
in the TOC register, it is mandatory to stop them by writing 00h in the TOC register.
Detailed examples of how to use these specific timers can be found in application note
“AN01010”.
Table 45: TOC - time-out configuration register (address 8h) bit allocation
Bit
7
6
5
4
3
Symbol
TOC7
TOC6
TOC5
TOC4
TOC3
Reset
0
0
0
0
0
Access
read and write
2
TOC2
0
1
TOC1
0
0
TOC0
0
Table 46: TOC - time-out configuration register (address 8h) bit description
Bit
Symbol
Description
7 to 0
TOC[7:0]
Time-out counter configuration. The time-out configuration register is used for setting
different configurations of the time-out counter as given in Table 47, all other
configurations are undefined.
Table 47: Time-out counter configurations
TOC[7:0] Operating mode
(hex)
00
All counters are stopped.
05
Counters 2 and 3 are stopped; counter 1 continues to operate in auto-reload mode.
61
Counter 1 is stopped, and counters 3 and 2 form a 16-bit counter. Counting the value stored in registers TOR3
and TOR2 is started after 61h is written in register TOC. When the terminal count is reached, an interrupt is
given, and bit TO3 in register USR is set. The counter is stopped by writing 00h in register TOC, and should be
stopped before reloading new values in registers TOR2 and TOR3.
9397 750 14145
Product data sheet
Rev. 03 — 22 February 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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