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| 型號： | ST52501LF3 |
| 英文描述： | MAX 7000 CPLD 128 MC 100-PQFP |
| 中文描述： | 8位紅外驅(qū)動重癥監(jiān)護(hù)病房。定時器/脈寬調(diào)制。 I2C總線。的SPI。脊髓損傷。低電壓 |
| 文件頁數(shù)： | 43/106頁 |
| 文件大?。?/td> | 1355K |
| 代理商： | ST52501LF3 |
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Low Priority Register (INT_PRL_L)
Configuration Register 4 (04h) Read/Write
Reset Value: 1000 1000 (88h)
These three register are used to configure the
priority level of each interrupt source. The 24 bits
of these registers (PRL24-PRL0) are divided into 8
groups of three bits: each group is associated with
a priority level (from level 1, the highest, to level 8,
the lowest: level 0 is fixed for the NMI that can be
interrupted only by the TRAP). The three bits of
each group are written with the code number
associated with the interrupt source (see Table
5.1).
PRL2-PRL1: Interrupt priority level 1 (highest)
PRL5-PRL3: Interrupt priority level 2
PRL8-PRL6: Interrupt priority level 3
PRL11-PRL9:Interrupt priority level 4
PRL14-PRL12: Interrupt priority level 5
PRL17-PRL15: Interrupt priority level 6
PRL20-PRL18: Interrupt priority level 7
PRL23-PRL21: Interrupt priority level 8 (lowest)
Example: writing the code 110 into PRL8-PRL6
bits the priority level 3 is assigned to the Port A
Interrupt.
Warning: the Priority Level configuration registers
must be always configured.
(*) The interrupt 3 is shared between SCI and SPI. The two sources can be enabled selectively by their own interrupt
enable bit in the Configuration Register. Further, they can be discriminated by reading their own status registers.
70
PRL7
PRL6
PRL5
PRL4
PRL3
PRL2
PRL1
PRL0
Table 5.1 Interrupt sources parameters
Interrupt Source
Priority type
PRL code
RINT code
Maskable
Vector Addresses
PHW
Programmable
000
0
Yes
3-5 (03h-05h)
PWM/Timer 0
Programmable
001
1
Yes
6-8 (06h-08h)
PWM/Timer 1 IR Driver
Programmable
010
2
Yes
9-11 (09h-0Bh)
SCI / SPI (*)
Programmable
011
3
Yes
12-14 (0Ch-0Eh)
PLVD
Programmable
100
4
Yes
15-17 (0Fh-011h)
I2C Interface
Programmable
101
5
Yes
18-20 (012h-014h)
Port A
Programmable
110
6
Yes
21-23 (015h-017h)
Port B OR C
Programmable
111
7
Yes
24-26 (018h-01Ah)
NMI
Fixed
-
8
No
27-29 (01Bh-01Dh)
TRAP
Fixed to highest
-
No
30-32 (01Eh-020h)
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| ST52501LG1 | MAX 7000 CPLD 128 MC 160-PQFP |
| ST52501LG2 | MAX 7000 CPLD 128 MC 100-TQFP |
| ST52501LG3 | MAX 7000 CPLD 128 MC 100-TQFP |
| ST52501LK1 | MAX 7000 CPLD 160 MC 84-PLCC |
| ST52501LK2 | MAX 7000 CPLD 160 MC 100-TQFP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST52501LG1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT ICU WITH IR DRIVER. TIMER/PWM. I2C. SPI. SCI. LOW VOLTAGE |
| ST52501LG2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT ICU WITH IR DRIVER. TIMER/PWM. I2C. SPI. SCI. LOW VOLTAGE |
| ST52501LG3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT ICU WITH IR DRIVER. TIMER/PWM. I2C. SPI. SCI. LOW VOLTAGE |
| ST52501LK1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT ICU WITH IR DRIVER. TIMER/PWM. I2C. SPI. SCI. LOW VOLTAGE |
| ST52501LK2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT ICU WITH IR DRIVER. TIMER/PWM. I2C. SPI. SCI. LOW VOLTAGE |
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