Hard disk: WD Scopio Blue - 160 GB - WD1600BEVT-22ZCT0
- Form Factor 2.5"
- Operating temperature 0 — 60 ⁰C
- Spindle speed 5400 rpm (90 rotations/second)
- Serial ATA 3 Gbit/s
- Buffer size 8 MB
- Non-Recoverable Errors 1 per 10^14
- JTAG
- LVTTL 3.3V Asynchronous communication port 115200 8N1
Design layout:
- Cache DRAM 8 MB
- Microcontroller, ARMv7 88i6745
- Three-phase spindle motor controller L7206
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DRAM ; CMOS Synchronous 166 MHz, 4 banks x 1 Mbit x 16, LVTTL, 0 — 70 ⁰C -
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Motor controller ; SMOOTH, L7206 1.2 990C1 V5 MYS 99 936 ST (e3) 05
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PCB top, facing the user -
PCB bottom (facing spindle chassis)
The LVTTL asynchronous port is located above "R36" on the top side. In order from R36 towards the top the connections are: unknown, TX from hdd, RX to hdd, unknown. Console is enable by connecting a resistor 4k7 between test point P1 (+3.3V) and test point E6.
Communications parameters are 115200 8N1. The console when activated supports three commands:
- r <32-bit address> ; read 16-bit from address
- w <32-bit address> <16-bit data> ; write to address
- j <32-bit address> ; Jump or call code
- h ; Halt?
- Supports X-modem
JTAG is located on the top side PCB, opposite connection pad row of the "CON1" text. Counting from the marking "37" and left: GND, GND, GND, GND, GND, GND, GND, GND, RST, TDI, TMS, CLK IN, CLK OUT, TDO, E35, nc, GND, nc, nc.
Boot strap:
- Flash start at 0x0000 0000 translates to physical address 0xFFF0 0000
- Flash size is 0x30000
- System image header ID: 0x5A 04 00 00
Connection with a 4.7k resistor between E61 and GND. Makes the drive on powering on to perform a RAM test.
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