TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 178
TX4939XBG-400
Manufacturer Part Number
TX4939XBG-400
Description
Manufacturer
Toshiba
Datasheet
1.TX4939XBG-400.pdf
(740 pages)
Specifications of TX4939XBG-400
Cpu Core
TX49/H4 90nm
Clock Mhz/max Mips
400/520
Inst./data Cache
32KB (4 Way)/32KB (4 Way)
Tlb
x
1cycle Mac
x
Volts (v)
1.25/2.5/3.3
Peripherals
DDR, NAND, ATA, ETHERNET, SECURITY, FPU, MMU, SPI, I2S, I2C, PCI, VIDEO, UART, TIMER, RTC
Companion Chip
TC86C001FG
Package
PGBA456
Available stocks
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Manufacturer
Quantity
Price
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NSC
Quantity:
872
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Part Number:
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TX4939XBG-400
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20 000
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8.4.7. Interrupt Mask Level Register (IRMSK)
Rev. 3.1 November 1, 2005
Bits
31:3
2:0
31
15
30
14
Mnemonic
-
IML
29
13
28
12
Field Name
-
Interrupt Mask
Level
27
11
26
10
Figure 8-10 Interrupt Mask Level Register
Table 8-12 Interrupt Mask Level Register
Reserved
25
9
Explanation
Reserved
Interrupt Mask Level (Default: 000)
These bits specify the interrupt mask level. Masks interrupts
with a mask level lower than the set mask level.
000: Interrupt mask level 0 (No interrupts masked)
001: Interrupt mask level 1 (Levels 2-7 enabled)
010: Interrupt mask level 2 (Levels 3-7 enabled)
011: Interrupt mask level 3 (Levels 4-7 enabled)
100: Interrupt mask level 4 (Levels 5-7 enabled)
101: Interrupt mask level 5 (Levels 6-7 enabled)
110: Interrupt mask level 6 (Level 7 enabled)
111: Interrupt mask level 7 (Interrupts disabled)
24
Reserved
8
8-16
23
7
22
6
21
5
20
4
19
3
18
2
Toshiba RISC Processor
R/W
IML
17
1
0
0xE8A0
16
0
Read/Write
-
R/W
: Default
: Default
: Type
: Type
TX4939
8
8
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