TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 215

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TX4939XBG-400

Manufacturer Part Number
TX4939XBG-400
Description
Manufacturer
Toshiba
Datasheet

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

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Manufacturer:
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EBC
9.4.5.
Rev. 3.1 November 1, 2005
ACK*/READY
ACK*/READY
SADB [15:0]
SADB [15:0]
OUTPUT
OUTPUT
AD [21:6]
AD [21:6]
SYSCLK
SYSCLK
SA [5:0]
SA [5:0]
SWE*
BWE*
SWE*
BWE*
ACE*
ACE*
OE*
Normal Mode Access (Burst, 8-bit Bus)
CE*
OE*
BE*
CE*
BE*
F
F
0
0
F
Figure 9-26 4-word Burst Write (PWT: WT=0, SHWT=0, Normal, 8-bit Bus)
Figure 9-27 4-word Burst Read (PWT: WT=0, SHWT=0, Normal, 8-bit Bus)
(For 1/3 clock speed – SP=01, SADB setup time to assertion of SWE is ½ SYSCLK)
S1
S1
1
1
4-Word Burst Read (PWT:WT=0, SHWT=0, Normal, 8-bit Bus)
0
4-Word Burst Write (PWT:WT=0, SHWT=0, Normal, 8-bit Bus)
data 0
S2
S2
2
2
0
E
S1
S3
3
3
1
F
S2
S1
4
4
E
E
data 1
S1
S2
5
5
1
E
2
S3
S2
6
6
F
S1
S1
7
7
data 2
3
9-25
2
S2
S2
8
8
C
data C
C
B
S3
S2
9
9
F
F
S1
10
S1
10
C
data D
S2
11
S2
11
D
E
S3
12
S1
12
F
D
S1
13
S2
13
E
E
data E
S2
14
S1
14
E
E
Toshiba RISC Processor
E
S3
15
S2
15
F
S1
16
S1
16
data F
S2
17
S2
17
E
F
F
S3
18
S3
18
TX4939
19
19
F
Rev 2.12
Rev 2.12
F
F
9
9

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