TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 243
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TX4939XBG-400
Manufacturer:
NSC
Quantity:
872
Company:
Part Number:
TX4939XBG-400
Manufacturer:
TOSHIBA
Quantity:
10 440
Part Number:
TX4939XBG-400
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
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NDFMC
10.6.2. Data Read Sequence
Rev. 3.1 November 1, 2005
SADB[15:0]
SADB[15:0]
GBUSCLK
GBUSCLK
NDCS[1:0]
NDCS[1:0]
SA [5,3:0]
SA [4:0]
NDWE*
RY/BY*
NDCLE
RY/BY*
ND_LA
NDALE
ND_LA
NDRE*
NDCE*
NDWE*
NDCLE
NDRE*
NDALE
NDCE*
SA[5]
SA[4]
BG
BG
0
0
SU W1 H1 HD Idle BG
SU W1 H1 HD Idle BG
1
1
2
UPDATE
2
UPDATE
Figure 10-16 Command Cycles and Address Cycles and Read Cycle
3
3
4
4
Repeat UPDATE until
T
WB
5
5
passed
6
6
SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD
SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD Idle BG SU W1 H1 HD
7
7
UPDATE
8
8
Read Sequence (SPW=1, HOLD=1) Part 1
Read Sequence (SPW=1, HOLD=1) Part 2
WRITE
0x00
9
9
10
10
11 12 13 14 15 16 17 18
11 12 13 14 15 16 17 18
UPDATE
10-19
CPU Checks RY/BY*
19
19
valid
valid
20 21 22 23 24 25 26 27 28 29
20 21 22 23 24 25 26 27 28 29
WRITE
A[7:0]
READ
D0
A[16:9]
WRITE
READ
D1
Toshiba RISC Processor
30 31 32 33 34 35 36 37 38 39 40
30 31 32 33 34 35 36 37 38 39 40
A[24:17]
WRITE
READ
D2
TX4939
UPDATE
READ
Rev 2.14
Rev 2.14
D3
10
10
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