All chip parts / designators from a C/NTR-CPU-01 board
Chips U1-U12
Designation: U1
Silkscreen: NTR-CPU
Package: Evil BGA package
Purpose: Main CPU / Sub CPU / 2D cores / 3D core / Various memories / BIOSes
Chip Text:
0437 4m
CPU NTR
(M)(C)2004
Nintendo
Japan ARM
Designation: U2
Silkscreen: NTR-SRAM
Package: BGA 48
Purpose: 2M x 16 PSRAM
Chip Text:
ST M69AB048
BL70ZA8
AA2AS 9
FWN 99 437
Designation: U3
Silkscreen: ?
Package: 64 pin QFP (T?)
Purpose: Power management
Chip Text:
MITSUMI
JAPAN
438
3152A
Designation: U4
Silkscreen: RTC
Package: Insanely small 8 pin
Purpose: Real Time Clock
Chip Text:
110
408
458
Designation: U5
Silkscreen: NTR-RFU
Package: Custom shielded (approx. 32 pins)
Purpose: 802.11b Radio modem
Designation: U6
Package: 16 pin SOIC
Purpose: Low Voltage I/O Touch Screen Controller
Chip Text:
TI TSC
2046I
48MXNK5
or for EUR version:
AKM
4148AVT
ON439
Designation: U7 Package: 6 pin (5 actually, missing middle left pin)
Location: Unknown
Purpose: Unknown
Chip Text:
Designation: U8
Package: 6 pin (5 actually, missing middle left pin)
Location: Left edge of back
Purpose: Unknown
Chip Text:
KEG
Designation: U9
Package: 6 pin (5 actually, missing middle left pin)
Location: Left edge of back
Purpose: Unknown
Chip Text:
KER
Designation: U10
Package: 6 pin (5 actually, missing middle left pin)
Location: Left edge of back
Purpose: Unknown
Chip Text:
KER
Designation: U11
Package: 6 pin (3 actually, missing two on one side, and one on the other)
Location: Above ABXY button cluster
Purpose: Magnetic sensor
Chip Text:
W672
45KL
Designation: U12
Package: 8 pin SOIC narrow
Location: Below ABXY button cluster
Purpose: Dual 250 mW Audio Power Amplifier with Shutdown Mode
Chip Text:
45RF (maybe, can't read this line well)
LM
4880M
Connectors
Designation: P1
Purpose: GBA cartridge slot
Designation: P2
Purpose: DS card slot
Crystal (oscillator)
Designation: X1
Value: 16.756 MHz
Purpose: Main time base
Chip Text: D164J
Designation: X2
Value: 32.768 KHz
Purpose: RTC time base
Chip Text:
32.768
KDS0438
RFU
Package: 48 pin
Purpose:
Chip Text:
MITSUMI
JAPAN
437
MM3155
Package: 8 pin
Purpose: Firmware EEPROM
Chip Text:
25FW203T
4KU20
(first 256 pages of 256 bytes can be protected) or
ST
45PE20P
94400
(first 512 bytes can be protected)
PCB (inferred) Nomenclature:
* SL = Short Line (normally open, short for special behavior)
o SL1 = Short to disable write protection on Firmware
* CL = Cut Line (normally closed, cut for special behavior)
* VDDx = Voltage x
o VDD5, VDD3.3, VDD1.5, VDD1.8, VDD-10, VDD-5, VDD15, VDD10
* Pxx = Pin? xx (goes to keys register, i.e. P00 is bit 0)
o P00, P01, P02, P03, P04, P05, P06, P07, P08, P09
* Rxx = Retarded? xx (goes to arm7 R reg, e.g. X/Y/penirq)
o R00, R01, ?
* LDR0..LDR5, LDG0..LDG5, LDB0..LDB5 - RGB lcd data, dunno which is MSB
* BT+ / BT-: battery terminals
* PWSW - power switch
* AD0..AD15, A16..A23 - GBA cart address bus
* PHI - GBA cart configurable clock terminal
* IRQ - GBA cart irq line
* CLKB-MC - DS card ROM CLK
* CSB-MC - DS card ROM /CS line
* RESB-MC - DS card reset line
* CSB-MC2 - DS card SPI /CS line
* IREQ-MC - DS card irq line
* I/O0..I/07 - DS card data bus (SPI data bus shared here)
* RST -
* lots more
最終更新:2007年06月18日 09:28