7368868E STMicroelectronics Confidential 39/709
STi5516 Pin list
Confidential
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.
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
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)
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