Manual

AT75C310
4
USART A
RXDA I Receive Data
TXDA O Transmit Data
NRTSA O Ready to Send
NCTSA I Clear To Send
NDTRA O Data Terminal Ready
NDSRA/BOOTN I Data Set Ready
NDCDA I Data Carrier Detect
NRIA I Ring Indicator
SCLKA I/O Serial Clock
USART B
RXDB I Receive Data
TXDB O Transmit Data
JTAG Interface
NTRST I JTAG Test Reset
TCK I JTAG Test Clock
TMS I JTAG Test Mode Select
TDI I JTAG Test Data Input
TDO O JTAG Test Data Output
Codec Interface A
SCLKA I/O Codec Serial Clock
FSA I/O Frame Sync Pulse
STXA O Transmit Data to Codec
SRXA I Receive Data from Codec
Codec Interface B
SCLKB I/O Codec Serial Clock
FSB I/O Frame Sync Pulse
STXB O Transmit Data to Codec
SRXB I Receive Data from Codec
Miscellaneous
RESET I Master Reset
FIQ/LOWP I Fast Interrupt/Low Power
IRQ0 I External Interrupt request
XREF96 I External 96 MHz PLL Reference
XREF80 I External 80 MHZ PLL Reference
XTALIN I External Crystal Input
XTALOUT O External Crystal Output
TST I Test Mode
Table 2. AT75C310 Pin Description (Continued)
Block Pin Name Type Function