User`s manual

Am186
TM
CC Microcontroller ISDN TA Reference Design Manual
2-17
MCS0# {UCSX8#} [PIO4] x8 TIP boot
MCS1# [CAS1#] DRAM LCAS#
MCS2# [CAS0#] DRAM UCAS#
PCS1# {USBSEL1} [PIO14] S/T-transceiver chip select
PCS3# TIP
RXDA [DDA] [RXDA] HDLC Channel A interface to
ISDN components
TXDA [DUA] [TXDA] HDLC Channel A interface to
ISDN components
RCLKA [DCLA] [CLKA] HDLC Channel A interface to
ISDN components
TCLKA [FSCA] [FSCA] HDLC Channel A interface to
ISDN components
RXDHU [PIO16] High-Speed UART receive data
TXDHU High-Speed UART transmit data
CTSHU# [CTSD#] [TSCD#] [PIO46] High-Speed UART clear to send
RTRHU# [RTRD#] [PIO47] High-Speed UART ready to
receive
SCLK [PIO11] ISDN U transceiver synchronous
serial interface
SDATA [PIO12] ISDN U transceiver synchronous
serial interface
Table 2-3. Pin Usage for the ISDN TA (Continued)
Pin Name Usage
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