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LC-26GA5E
LC-32GA5E
LC-26P70E
LC-32P70E
LC-37P70E
2.6.3. Pin Description (Continued)
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Pin list
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Table 24: Port 4 PIO signal assignments
Port 4 bit
Input
Output
Bit 0
TTXTREQUEST or OSDENABLE
OSDENABLE
a
Bit 1
CFC
TXTDATAOUT
b
Bit 2
YC[7]
YC[7]
Bit 3
ASC2_RXD
Bit 4
ASC2_TXD
c
Bit 5
PWM_CAPTURE2 or YC[6]
YC[6]
Bit 6
SCCG_EXTCLK
PWM_COMPARE2
Bit 7
PWM_OUT2
a. OSDENABLE output function is selected rather than PIO by interconnect configuration
register CONFIG_CONTROL_C, bit 2 (CONFIG_OTHER_ALT_PIOPORT4[0]). The output
can then be turned off by the MPEG video decoder to use OSDENABLE as an input.
can then be turned off by the MPEG video decoder to use OSDENABLE as an input.
b. TXTDATAOUT function selected by interconnect configuration register
CONFIG_CONTROL_C, bit 3 (CONFIG_OTHER_ALT_PIOPORT4[1])
c. After reset, register CONFIG_CONTROL_C bit 4 must be set to 1 to pass PIO data or to use
ASC2_TXD in alternate output PIO mode.
Table 25: Port 5 PIO signal assignments
Port 5 bit
Input
Output
Bit 0
IRB_IR_IN
a
Bit 1
IRB_UHF_IN
b
Bit 2
Infrared transmitter/receiver drive PPM
Bit 3
Infrared transmitter/receiver drive jack (0 or z)
open drain jack output
open drain jack output
c, d
Bit 4
YC[5]
ASC3_TXD or YC[5]
e
Bit 5
ASC3_RXD or YC[4]
YC[4]
Bit 6
NOT_ASC3_CTS or YC[3]
YC[3]
Bit 7
YC[2]
NOT_ASC3RTS or YC[2]
e
a. The wake-up from low power mode function is enabled by interconnect configuration register
CONFIG_CONTROL_D, bit 21 (RC_IRDA_DATA_IN_EN).
b. The wake-up from low power mode function is enabled by interconnect configuration register
CONFIG_CONTROL_D, bit 22 (UHF_IN_EN).
c. PIO needs to be configured as open drain in alternate output mode to use infrared transmitter/
receiver drive jack.
d. After reset, bit 5 in CONFIG_CONTROL_C must be set to 1 to pass PIO data or use infrared
transmitter/receiver drive jack in alternate function mode.
e. Output function selected by bit 11 in CONFIG_CONTROL_E
(CONFIG_OTHER_ALT_PIO_YC)