Toshiba H1 Series, TLCS-900, TMP92CZ26AXBG - page 345

TMP92CZ26A
92CZ26A-342
(5) Notes
1. Baud rate for IrDA
When IrDA is operated, set 01 to SC0MOD0<SC1:0> to generate
baud-rate.
The setting exce pt abov e ( TA0T RG, fIO and SCLK0-input) ca nnot be used.
2. The pulse width for transmission
The IrDA 1.0 specification is def ined in Table 3.14.3.
Table 3.14.3 Baud rate and pulse width specification s
Baud Rate Modulation Rate Tolerance
(% of rate)
Pulse Width
(minimum)
Pulse Width
(typical)
Pulse width
(maximum)
2.4 kbps RZI ±0.87 1.41 μs 78.13 μs 88.55 μs
9.6 kbps RZI ±0.87 1.41 μs 19.53 μs 22.13 μs
19.2 kbps RZI ±0.87 1.41 μs 9.77 μs 11.07 μs
38.4 kbps RZI ±0.87 1.41 μs 4.88 μs 5.96 μs
57.6 kbps RZI ±0.87 1.41 μs 3.26 μs 4.34 μs
115.2 kbps RZI ±0.87 1.41 μs 1.63 μs 2.23 μs
The infra-red puls e width is speci fied either ba ud rate T× 3/1 6 or 1.6 μs (1.6 μs is equal to
3/16 pulse width when baud rate is 115.2 kbps).
The TMP92CZ26A has the function selects the pulse width of Transm ission either 3/16 or
1/16. But 1/16 pulse width can be selected when the baud rate is equal or less than 38.4
kbps.
As the same reason, + (16 − k)/16 division function in the baud rate generator of SIO0 can
not be used to generate 115.2 kbps baud rate.
Also when the 38.4 kb ps and 1/16 pulse width, + (16-K)/16 division function can not be used.
Table 3.14.4 Baud rate and pulse width for (16 – K) / 16 division function
Baud Rate
Pulse Width 115.2 Kbps 57.6 Kbps 38.4 Kbps 19.2 Kbps 9.6 Kbps 2.4 Kbps
T × 3/16 × (Note) ○ ○ ○ ○ ○
T × 1/16 − − × ○ ○ ○
○: Can be used (16 − K)/16 division function
×: Cannot be used (16 − K)/16 division function
−: Cannot be set to 1/16 pulse width
Note: Can be used (16 − K)/16 division function at a special condition.