TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 205

• Manufacturer Part Number: TX4939XBG-400
• Manufacturer: Toshiba

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

EBC
9.3.
9.3.1.
Channel 0 can be used as Boot memory. Therefore, the default is set by the Boot signal. Channels 1 - 3 have the same
register configuration as Channel 0, but they have different defaults than Channel 0.
When the EBCCRn is programmed using a sequence of 32-bit store instructions, the base address in the high-order 32-bit
portion of the register must be written first, followed by the Master Enable bit in the low-order 32-bit portion.
Only in the case of Channel 0 are fields with different defaults in the “Channel 0/Other channel” state. SADB[ ] represents
the corresponding Data[ ] signal value when the RESET* signal is de-asserted. SA[ ] represents the corresponding ADDR[ ]
signal value when the RESET* signal is de-asserted.
Rev. 3.1 November 1, 2005
15
63
47
31
111(~SADB[2])/0000
0x9000
0x9008
0x9010
0x9018
0x9020
0x9028
0x9030
0x9038
Register Detail
External Bus Channel Control Register (EBCCRn)
R/W
WT
Offset Address
12
Reserved
11
0
Table 9-7 External Bus Controller (EBUSC) Registers
0
R/W
CS
1 / 0
64
64
64
64
64
64
64
64
Bit Width
8
0
0x01FC/0x0000
BA[35:20]
Reserved
SADB
R/W
R/W
[1]/0
BC
9-15
7
23
EBCCR0
EBCCR1
EBCCR2
EBCCR3
EBCCR4
EBCCR5
EBCCR6
EBCCR7
Register Symbol
RDY
R/W
R/W
ISA
6
0
22
0
SA[4:3]/00
21
5
R/W
SP
SADB
BSZ
R/W
[3]/0
E-Bus Channel Control Register 0
E-Bus Channel Control Register 1
E-Bus Channel Control Register 2
E-Bus Channel Control Register 3
Reserved
Reserved
Reserved
Reserved
20
4
R/W
ME
1/0
19
0
3
Register Name
R/W
PM
Toshiba RISC Processor
18
0
2
0
SHWT
R/W
17
0
11/00
PWT
R/W
48
32
16
0
0
TX4939
: Initial
: Type
: Initial
: Type
: Initial
: Type
: Initial
:Type
value
value
value
value
9
9