General Circuit Interface (GCI)
Am186™CC/CH/CU Microcontrollers User’s Manual
17-13
Figure 17-7
GCI With Bus Reversal Disabled
17.5.5
GCI Interface Signals
17.5.5.1
Four-Pin Interface
The GCI terminal mode interface consists of a four-pin subset of the seven-pin GCI industry
standard serial bus. The GCI interface for the Am186CC microcontroller uses the frame
synchronization clock (GCI_FSC_A), data clock (GCI_DCL_A), data downstream
(GCI_DD_A), and data upstream (GCI_DU_A) signals. The definition of the GCI external
signals is dependent on the current bus state (activated/deactivated) and the mode of
operation (bus reversal enabled/disabled), as described in Table 17-3.
Table 17-3
GCI Signals
Signal
Signal
Function
Mode: Reversal
State: Activated
Mode: Reversal
State: Deactivated
Mode: No Reversal
State: Activated
Mode: No Reversal
State: Deactivated
GCI_FSC_A
Frame
sync clock
Input
Input
Input
Input
GCI_DCL_A
Data clock
Input
Input
Input
Input
GCI_DD_A
Data down-
stream
Input/
Open Drain Output
High Impedance
Input
High Impedance
GCI_DU_A
Data up-
stream
Open Drain
Output/Input
Open Drain Output
Open Drain Output
Open Drain Output
Transceiver
DD
DU
Downstream
#1
Downstream
#2
DD
DD
DU
DU
DD
DU
B1,B2,D,MON0,C/I0,IC1,IC2,
MON1,C/I1,E(in),S/G(in), BAC(out),
TBA2-0(out)
Am186CC
Notes:
E, S/G, BAC, and TBA2–TBA0 are bits on the TIC bus.
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...