System Overview
Am186™CC/CH/CU Microcontrollers User’s Manual
3-27
[PCM_FSC_D]
[CTS_U] (UART)
[DCE_TCLK_D]
PIO24
STI
PCM Frame Synchronization Clock provides the Frame
Synchronization Clock input (usually 8 kHz) for the channel D
PCM Highway interface.
[PCM_TSC_D]
[CTS_HU] (High-
Speed UART)
[DCE_CTS_D]
PIO46
OD
PCM Time Slot Control D enables an external buffer device
when channel D PCM Highway data is present on the
[PCM_TXD_D] output pin in PCM Highway mode.
HDLC Channel A (GCI)
[GCI_DD_A]
DCE_RXD_A
[PCM_RXD_A]
BO
D
GCI Data Downstream is the serial data input pin for the channel
A GCI interface.
[GCI_DU_A]
DCE_TXD_A
[PCM_TXD_A]
BO
D
GCI Data Upstream is the serial data output pin for the channel
A GCI interface.
[GCI_DCL_A]
DCE_RCLK_A
[PCM_CLK_A]
STI
GCI Data Clock is the single transmit and receive channel A
GCI data clock input generated by an upstream device. The data
clock frequency must be twice the data rate.
[GCI_FSC_A]
DCE_TCLK_A
[PCM_FSC_A]
STI
GCI Frame Synchronization Clock provides the 8-kHz Frame
Synchronization Clock input for the channel A GCI interface
generated by an upstream device.
UNIVERSAL SERIAL BUS (USB)
[UDMNS]
[UDPLS]
USBD–
USBD+
STI
STI
USB External Transceiver Gated Differential Plus and USB
External Transceiver Gated Differential Minus are inputs from
the external USB transceiver used to detect single-ended zero
and error conditions. The signals have the following meanings:
USBD+
USBD–
[UDPLS]
[UDMNS]
B
B
USB Differential Plus and USB Differential Minus form the
bidirectional electrical data interface for the USB port. The pins
form a differential pair that can be connected to a physical USB
connector without an external transceiver.
[USBSCI]
[UCLK]
[USBSOF]
PIO21
STI
USB Sample Clock Input is used to synchronize an external
clock to the internal USB peripheral controller for isochronous
transfers.
[USBSOF]
[UCLK]
[USBSCI]
PIO21
O
USB Start of Frame is a 1-kHz frame pulse used to synchronize
USB isochronous transfers to an external device on a frame-by-
frame basis.
UTXDMNS
RSVD_102
O
USB External Transceiver Differential Minus is an output that
drives the external transceiver differential driver minus input.
Table 3-7
Signal Descriptions (Continued)
Signal Name
1
Multiplexed
Signal(s)
Type Description
CC
CC
CC
CC
CC
CC
CC
CC
CU
CC
CU
CC
CU
USB External Transceiver Signals
UDPLS
UDMNS
Status
0
0
Single-Ended Zero
(SE0)
0
1
Full speed
1
0
Reserved
1
1
Error
CC
CU
CC
CU
CC
CU
CC
CU
CC
CU
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...