TMPR4937XBG-300 Toshiba, TMPR4937XBG-300 Datasheet - Page 67
TMPR4937XBG-300
Manufacturer Part Number
TMPR4937XBG-300
Description
Manufacturer
Toshiba
Datasheet
1.TMPR4937XBG-300.pdf
(552 pages)
Specifications of TMPR4937XBG-300
Family Name
TX49
Device Core Size
64b
Frequency (max)
300MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
1.5V
Operating Supply Voltage (max)
1.6V
Operating Supply Voltage (min)
1.4V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
484
Package Type
BGA
Lead Free Status / Rohs Status
Compliant
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DATA[22:16]
DATA[15:8]
DATA[7]
DATA[6]
DATA[5]
DATA[4]
DATA[3]
DATA[2]
DATA[1:0]
Signal
Reserved
Boot Configuration
Reads the board information and accordingly sets the boot
configuration field (BCFG) of the chip configuration register (CCFG).
TX49/H3 Internal Timer Interrupt Disable
Specifies whether timer interrupts within the TX49/H2 core are
enabled.
H = Enable timer interrupts within the TX49/H3 core.
L = Disable timer interrupts within the TX49/H3 core.
Reserved
Specifies the function of the BE[3:0]*/BWE[3:0]* pins upon booting.
L = BE[3:0]* (Byte Enable)
H = BWE[3:0]* (Byte Write Enable)
Boot ACK* Input
Specifies the access mode for external bus controller channel 0.
L = External ACK mode
H = Normal mode
Reserved
PCI Arbiter Select
Selects a PCI bus arbiter.
L = External PCI bus arbiter.
H = Built-in PCI bus arbiter.
Boot ROM Bus Width
Specifies the data bus width when booting from a memory device
connected to the external bus controller.
LL = Reserved
LH = 32 bits
HL = 16 bits
HH = 8 bits
Table 3.2.3 Boot Configuration Specified with the DATA[22:0] Signals
Description
3-13
CCFG.BCFG
CCFG.TINTDIS
EBCCR0.BC
EBCCR0.WT[0]
CCFG.PCIARB
EBCCR0.BSZ
Corresponding
Register Bit
Chapter 3 Signals
⎯
⎯
⎯
RESET* deassert edge
RESET* deassert edge
RESET* deassert edge
RESET* deassert edge
RESET* deassert edge
RESET* deassert edge
Determined at
Configuration
⎯
⎯
⎯
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