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參數(shù)資料
| 型號(hào)： | AMBA |
| 廠商： | Atmel Corp. |
| 英文描述： | 32-bit Embedded Core Interface(32位嵌入式總線接口) |
| 中文描述： | 32位嵌入式處理器接口（32位嵌入式總線接口） |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 145K |
| 代理商： | AMBA |
1
Features
Links an Embedded ARM7TDMI
Core to the Atmel AMBA
Bus
Bus Master Granted State Machine
Bus Interface State Machine
Fully Scan Testable (up to 96% Fault Coverage)
Description
Designed for the Atmel implementation of the AMBA Bus, the ARM7TDMI Bus Inter-
face module enables an ARM7TDMI embedded core to become an AMBA bus
master.
The bus interface is designed to link the embedded ARM7TDMI core signals to the
AMBA Bus. It includes two state machines. The first state machine determines if the
master is currently granted the bus, and the second, more complex, state machine is
used to control the bus interface of the master.
This peripheral can only be used with an embedded ARM7TDMI core.
There are no user-programmable registers in this block.
Figure 1.
ARM7TDMI Bus Interface Pin Configuration
blast_in
nreset_r
berror_in
agnt
nreset_f
nwait
abort
AMBA
Wrapper
(ARM7TDMI
Interface)
AMBA Bus
Inputs
ARM7TDMI
AMBA Related
Signals
system clock_n
bwait_in
system clock
btran1:0]
bprot1:0]
mabe
nmreq
seq
nopc
ntrans
scan_test_mode
test_se
AMBA Bus
Outputs
test_so
test_si
Scan Interface
ARM7TDMI
Bus Interface
32-bit
Embedded Core
Interface
Rev. 1283B
–
05/00
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