System Overview
Am186™CC/CH/CU Microcontrollers User’s Manual
3-25
[DCE_RTR_C]
PIO45
O
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.
HDLC Channel D (DCE)
DCE_RXD_D
[RXD_U] (UART)
[PCM_RXD_D]
PIO26
STI
DCE Receive Data Channel D is the serial data input pin for
the channel D DCE interface.
[DCE_TXD_D]
[TXD_U] (UART)
[PCM_TXD_D]
PIO20
OD-
O
DCE Transmit Data Channel D is the serial data output pin for
the channel D DCE interface.
DCE_RCLK_D
[RTR_U] (UART)
[PCM_CLK_D]
PIO25
STI
DCE Receive Clock Channel D provides the receive clock to
the channel D DCE interface. If the same clock is to be used for
both transmit and receive, then this pin should be tied to the
[DCE_TCLK_D] pin externally.
[DCE_TCLK_D]
[CTS_U] (UART)
[PCM_FSC_D]
PIO24
STI
DCE Transmit Clock Channel D provides the transmit clock to
the channel D 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_D pin externally.
[DCE_CTS_D]
[CTS_HU] (High-
Speed UART)
[PCM_TSC_D]
PIO46
STI
DCE Clear-To-Send Channel D indicates to the channel D DCE
interface that an external serial interface is ready to receive data.
[DCE_CTS_D] and [DCE_RTR_D] provide the handshaking for
DCE Channel D.
[DCE_RTR_D]
[RTR_HU] (High-
Speed UART)
PIO47
O
DCE Ready-To-Receive Channel D indicates to an external
serial interface that the internal channel D DCE interface is ready
to accept data. [DCE_CTS_D] and [DCE_RTR_D] provide the
handshaking for the channel D DCE interface.
HDLC Channel A (PCM)
[PCM_RXD_A]
DCE_RXD_A
[GCI_DD_A]
STI
PCM Receive Data Channel A is the serial data input pin for
the channel A PCM Highway interface.
[PCM_TXD_A]
DCE_TXD_A
[GCI_DU_A]
O-
LS-
OD
PCM Transmit Data Channel A is the serial data output pin for
the channel A PCM Highway interface.
[PCM_CLK_A]
DCE_RCLK_A
[GCI_DCL_A]
STI
PCM Clock is the single transmit and receive data clock pin for
the channel A PCM Highway interface.
[PCM_FSC_A]
DCE_TCLK_A
[GCI_FSC_A]
STI
PCM Frame Synchronization Clock provides the Frame
Synchronization Clock input (usually 8 kHz) for the channel A
PCM Highway interface.
[PCM_TSC_A]
[DCE_CTS_A]
PIO17
OD
PCM Time Slot Control A enables an external buffer device
when channel A PCM Highway data is present on the
[PCM_TXD_A] output pin in PCM Highway mode.
Table 3-7
Signal Descriptions (Continued)
Signal Name
1
Multiplexed
Signal(s)
Type Description
CC
CC
CC
CC
CC
CC
CC
CC
CC
CH
CC
CH
CC
CH
CC
CH
CC
CH
CC
CH
Содержание Am186 CC
Страница 1: ...Am186 CC CH CU Microcontrollers User s Manual Order 21914B...
Страница 4: ...iv Am186 CC CH CU Microcontrollers User s Manual...
Страница 18: ...Table of Contents xviii Am186 CC CH CU Microcontrollers User s Manual...
Страница 24: ...Introduction xxiv Am186 CC CH CU Microcontrollers User s Manual...
Страница 39: ...Architectural Overview Am186 CC CH CU Microcontrollers User s Manual 1 15 Figure 1 6 32 Channel Linecard CH CC...
Страница 40: ...Architectural Overview 1 16 Am186 CC CH CU Microcontrollers User s Manual...
Страница 86: ...System Overview 3 36 Am186 CC CH CU Microcontrollers User s Manual...
Страница 92: ...Emulator Support 4 6 Am186 CC CH CU Microcontrollers User s Manual...
Страница 112: ...DRAM Controller 6 8 Am186 CC CH CU Microcontrollers User s Manual...
Страница 134: ...Interrupts 7 22 Am186 CC CH CU Microcontrollers User s Manual...
Страница 186: ...Programmable I O Signals 9 8 Am186 CC CH CU Microcontrollers User s Manual...
Страница 200: ...Watchdog Timer 11 6 Am186 CC CH CU Microcontrollers User s Manual...
Страница 232: ...Asynchronous Serial Ports UARTs 13 24 Am186 CC CH CU Microcontrollers User s Manual...
Страница 242: ...Synchronous Serial Port SSI 14 10 Am186 CC CH CU Microcontrollers User s Manual...
Страница 264: ...High Level Data Link Control HDLC 15 22 Am186 CC CH CU Microcontrollers User s Manual...
Страница 332: ...Universal Serial Bus USB 18 34 Am186 CC CH CU Microcontrollers User s Manual...
Страница 348: ...Register Summary A 16 Am186 CC CH CU Microcontrollers User s Manual...
Страница 376: ...Index Index 18 Am186 CC CH CU Microcontrollers User s Manual...