General Circuit Interface (GCI)
Am186™CC/CH/CU Microcontrollers User’s Manual
17-5
17.4
REGISTERS
The registers listed in Table 17-2 program the GCI. Appendix A summarizes the bits in all
the registers. For a complete description of all the peripheral registers, see the
Am186™CC/CH/CU Microcontrollers Register Set Manual, order #21916.
17.5
OPERATION
17.5.1
Usage
Note: Before using GCI, ensure multiplexed pins are configured to reflect the use of GCI
and not other functionality (see Table 17-1 on page 17-3).
1. To enable the GCI interface, software must set the MODE field of the TSACON register
to 10b. This is necessary whether or not TSA Channel A is being used.
2. If transmitting using the GCI, see “Transmitting Data” on page 17-6; if receiving, see
“Receiving Data” on page 17-7.
Table 17-2
GCI Register Summary
Offset
Register
Mnemonic
Register Name
Description
2A0h
GPCON
GCI Peripheral Control
Configures GCI.
2A2h
GISTAT
GCI Interrupt Status
Contains status. All bits can generate an
interrupt if not masked off in GIMSK.
2A4h
GIMSK
GCI Interrupt Mask
Mask register for GISTAT. When a mask bit is
0 (the reset value), the corresponding interrupt
is masked off.
2A6h
GTIC
GCI TIC Bus Address
Enables TIC bus operation.
2A8h
GICTD
GCI Intercommunication Transmit Data
Contains user-defined transmission data for
GCI IC Channel 1 or 2.
2AAh
GICRD
GCI Intercommunication Receive Data
Contains received data for either GCI IC
Channel 1 or 2.
2ACh
GICRDP
GCI Intercommunication Receive Data
Peek
Copy of GICRD register that does not change
status when read.
2AEh
GCITD0
GCI Command/Indicate Transmit
Data 0
Contains user-defined transmission data for
GCI C/I0 channel.
2B0h
GCIRD0
GCI Command/Indicate Receive Data 0 Contains received data for GCI C/I0 channel.
2B2h
GCIRD0P
GCI Command/Indicate Receive Data 0
Peek
Copy of GCIRD0 register that does not change
status when read.
2B4h
GCITD1
GCI Command/Indicate Transmit
Data 1
Contains user-defined transmission data for
GCI C/I1 channel.
2B6h
GCIRD1
GCI Command/Indicate Receive Data 1 Contains received data for GCI C/I1 channel.
2B8h
GCIRD1P
GCI Command/Indicate Receive Data 1
Peek
Copy of GCIRD1 register that does not change
status when read.
2BAh
GMTD
GCI Monitor Transmit Data
Contains user-defined transmission data for
GCI Mon0 or Mon1 channels.
2BCh
GMRD
GCI Monitor Receive Data
Contains received data for GCI Mon0 or Mon1
channels.
2BEh
GMRDP
GCI Monitor Receive Data Peek
Copy of GMRD register that does not change
status when read.
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...