AM186CC-50KC\W C AMD, AM186CC-50KC\W C Datasheet - Page 24

• Manufacturer Part Number: AM186CC-50KC\W C
• Manufacturer: AMD

24
Signal Name
DCE_TCLK_A
[DCE_CTS_A]
[DCE_RTR_A]
HDLC Channel B (DCE)
[DCE_RXD_B]
[DCE_TXD_B]
[DCE_RCLK_B] [PCM_CLK_B]
[DCE_TCLK_B] [PCM_FSC_B]
[DCE_CTS_B]
[DCE_RTR_B]
HDLC Channel C (DCE)
[DCE_RXD_C]
[DCE_TXD_C]
[DCE_RCLK_C] [PCM_CLK_C]
[DCE_TCLK_C] [PCM_FSC_C]
[DCE_CTS_C]
[DCE_RTR_C]
HDLC Channel D (DCE)
DCE_RXD_D
Multiplexed
Signal(s)
[GCI_FSC_A]
[PCM_FSC_A]
[PCM_TSC_A]
PIO17
PIO18
[PCM_RXD_B]
PIO36
[PCM_TXD_B]
PIO37
PIO40
PIO41
[PCM_TSC_B]
PIO38
PIO39
[PCM_RXD_C]
PIO42
[PCM_TXD_C]
PIO43
PIO22
PIO23
[PCM_TSC_C]
PIO44
PIO45
[RXD_U] (UART)
[PCM_RXD_D]
PIO26
Am186™CC Communications Controller Data Sheet
Table 4. Signal Descriptions (Continued)
Type Description
OD-O
OD-O
STI
STI
STI
STI
STI
STI
STI
STI
STI
STI
STI
O
O
O
DCE Transmit Clock Channel A provides the transmit clock to the channel A
DCE interface. If the same clock is to be used for both transmit and receive, then
this pin should be tied to the DCE_RCLK_A pin externally.
The DCE function is the default at reset, so the board designer is responsible for
properly terminating the DCE_TCLK_A input.
DCE Clear To Send Channel A indicates to the channel A DCE interface that
an external serial interface is ready to receive data. [DCE_CTS_A] and
[DCE_RTR_A] provide the handshaking for DCE Channel A.
DCE Ready to Receive Channel A indicates to an external serial interface that
the internal channel A DCE interface is ready to accept data. [DCE_CTS_A] and
[DCE_RTR_A] provide the handshaking for the channel A DCE interface.
DCE Receive Data Channel B is the serial data input pin for the channel B DCE
interface.
DCE Transmit Data Channel B is the serial data output pin for the channel B
DCE interface.
DCE Receive Clock Channel B provides the receive clock to the channel B
DCE interface. If the same clock is to be used for both transmit and receive, this
pin should be tied to the [DCE_TCLK_B] pin externally.
DCE Transmit Clock Channel B provides the transmit clock to the channel B
DCE interface. If the same clock is to be used for both transmit and receive, this
pin should be tied to the [DCE_RCLK_B] pin externally.
DCE Clear To Send Channel B indicates to the channel B DCE interface that
an external serial interface is ready to receive data. [DCE_CTS_B] and
[DCE_RTR_B] provide the handshaking for the channel B DCE interface.
DCE Ready to Receive Channel B indicates to an external serial interface that
the internal channel B DCE interface is ready to accept data. [DCE_CTS_B] and
[DCE_RTR_B] provide the handshaking for the channel B DCE interface.
DCE Receive Data Channel C is the serial data input pin for the channel C DCE
interface.
DCE Transmit Data Channel C is the serial data output pin for the channel C
DCE interface.
DCE Receive Clock Channel C provides the receive clock to the channel C
DCE interface. If the same clock is to be used for both transmit and receive, this
pin should be tied to the [DCE_TCLK_C] pin externally.
DCE Transmit Clock Channel C provides the transmit clock to the channel C
DCE interface. If the same clock is to be used for both transmit and receive, this
pin should be tied to the [DCE_RCLK_C] pin externally.
DCE Clear To Send Channel C indicates to the channel C DCE interface that an
external serial interface is ready to receive data. [DCE_CTS_C] and
[DCE_RTR_C] provide the handshaking for the channel C DCE interface.
DCE Ready to Receive Channel C indicates to an external serial interface that
the internal channel C DCE is ready to accept data. [DCE_CTS_C] and
[DCE_RTR_C] provide the handshaking for the channel C DCE interface.
DCE Receive Data Channel D is the serial data input pin for the channel D DCE
interface.