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STR720 数据表(PDF) 163 Page - STMicroelectronics

部件名 STR720
功能描述  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
PDF  401 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STR720 数据表(HTML) 163 Page - STMicroelectronics

Back Button STR720 Datasheet HTML 159Page - STMicroelectronics STR720 Datasheet HTML 160Page - STMicroelectronics STR720 Datasheet HTML 161Page - STMicroelectronics STR720 Datasheet HTML 162Page - STMicroelectronics STR720 Datasheet HTML 163Page - STMicroelectronics STR720 Datasheet HTML 164Page - STMicroelectronics STR720 Datasheet HTML 165Page - STMicroelectronics STR720 Datasheet HTML 166Page - STMicroelectronics STR720 Datasheet HTML 167Page - STMicroelectronics Next Button
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STR720 - ASYNCHRONOUS AHB-APB BRIDGE (A3BRG)
163/401
Bridge Status Register (BSR)
Address Offset: 00h
Reset value: 0x0000_0000
This register stores the status of the AHB/APB allowing the application software to determine
the reason of the last failed peripheral access which resulted in an ERROR response to the
corresponding AHB transaction.
Bits 31:9 = Reserved. These bits should be always written to and read back as ‘0’.
Bit 8 = PUR: Peripheral Under Reset.
An access to a peripheral under reset has been attempted.
Bit 7 = PCO: Peripheral Clock Off.
An access to a not-clocked peripheral has been attempted.
Bit 6:5 = Reserved. These bits should be always written to and read back as ‘0’.
Bit 4 = OUTM: Out of memory.
An access out of memory has been attempted.
Bits 3:1 = Reserved. These bits must be always written to and read back as ‘0’.
Bit 0 = ERROR: Error.
a previous access has been aborted because it generates an error. The type of error is
reported on bit 4 to 8.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
rrrrrr
r
r
rrrrrr
r
r
15
14
13
12
11
10
9
8
765432
1
0
reserved
PUR
PCO
Reserved
OUTM
reserved
ERROR
rrrrrr
r
rc
rc
-
rc
-
rc
1



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