參數(shù)資料
型號: ISP1181BDGG,112
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PDSO48
封裝: 6.10 MM, PLASTIC, MO-153, SOT-362-1, TSSOP-48
文件頁數(shù): 35/70頁
文件大?。?/td> 341K
代理商: ISP1181BDGG,112
Philips Semiconductors
ISP1181B
Full-speed USB peripheral controller
Product data
Rev. 02 — 07 December 2004
40 of 70
9397 750 13958
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12.3.6
Read Interrupt Register
This command indicates the sources of interrupts as stored in the 4-byte Interrupt
Register. Each individual endpoint has its own interrupt bit. The bit allocation of the
Interrupt Register is shown in Table 48. Bit BUSTATUS is used to verify the current
bus status in the interrupt service routine. Interrupts are enabled via the Interrupt
Enable Register, see Section 12.1.5.
While reading the interrupt register, read all the 4 bytes completely.
Code (Hex): C0 — read interrupt register
Transaction — read 4 bytes
Bit
7
6
5
4
3
2
1
0
Symbol
CHIPIDL[7:0]
Reset
42H
Access
RRRRRRRR
Table 47:
Chip ID Register: bit description
Bit
Symbol
Description
15 to 8
CHIPIDH[7:0]
chip ID code (81H)
7 to 0
CHIPIDL[7:0]
silicon version (42H, with 42H representing the BCD encoded
version number)
Table 48:
Interrupt Register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
reserved
Reset
00000000
Access
RRRRRRRR
Bit
23
22
21
20
19
18
17
16
Symbol
EP14
EP13
EP12
EP11
EP10
EP9
EP8
EP7
Reset
00000000
Access
RRRRRRRR
Bit
15
14
13
12
11
10
9
8
Symbol
EP6
EP5
EP4
EP3
EP2
EP1
EP0IN
EP0OUT
Reset
00000000
Access
RRRRRRRR
Bit
7
6
5
4
3
2
1
0
Symbol
BUSTATUS
SP_EOT
PSOF
SOF
EOT
SUSPND
RESUME
RESET
Reset
00000000
Access
RRRRRRRR
Table 49:
Interrupt Register: bit description
Bit
Symbol
Description
31 to 24
-
reserved
23 to 10
EP14 to EP1
A logic 1 indicates the interrupt source(s): endpoint 14 to 1.
9
EP0IN
A logic 1 indicates the interrupt source: control IN endpoint.
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