TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 288
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
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Price
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Manufacturer:
NSC
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872
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Part Number:
TX4939XBG-400
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TOSHIBA
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TMR
13.6.9. Timer Read Register n (TMTRRn)
Rev. 3.1 November 1, 2005
Bits
31:0
Default
Default
Name
Name
Type:
Type:
TMTRR0 (0xF0F0), TMTRR1 (0xF1F0), TMTRR2 (0xF2F0),
TMTRR3 (0xFDF0), TMTRR4 (0xFEF0), TMTRR5 (0xFFF0)
Mnemonic
TCNT
31
15
30
14
Field Name
Timer Counter
29
13
28
12
27
11
Figure 13-15 Timer Read Register 0
Description
Timer Counter (Default: 0x00000000)
This Register is a 32-bit counter.
Read operation on this register returns the counter value.
Write operation to this register force the counter value to the write data.
The write data should be less than the value of the register TMCPRAn and
the timer operates normally except starting counter value.
If this write data value is greater or equal to the value of TMCPRAn, the result
is undefined.
Table 13-11 Timer Read Register n
26
10
25
9
13-20
24
8
0x0000
0x0000
TCNT
TCNT
R/W
R/W
23
7
22
6
21
5
20
4
Toshiba RISC Processor
19
3
18
2
17
1
R/W
R/W
TX4939
16
0
13
13
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