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jeremyb



Joined: 09 Dec 2008
Posts: 1525
Location: RecoverMyFlashDrive.com Fairfield, CT, USA

PostPosted: Mon Jul 29, 2019 19:33    Post subject: Notes: Chip 45 3c 86 93
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The chip blew up on me, so here are my notes in case anyone encounters it again.

Chip is divided into 4 parts the middle two are empty:
1: Pages 0x000000 - 0x082c00
2: Pages 0x100000 - 0x182c00
3: Pages 0x200000 - 0x282c00
4: Pages 0x300000 - 0x382c00


I belive this is the correct cfg, not whats in NR:

// Chip
Company Toshiba
Name Unknown
ID code 45 3c 86 93
 
// Structure
Bus 8
Banks 1 x 32 GB
Page 17664
Block 0x450000
Blocks 0x20b0
 
// Read
Cmd Std
Col 2
Row 3
DDR false
 
// Timings
RE_Up 2
RE_Down 2
 
// Special
Power
Retry
Skip_Mask_1 0xfffff
Skip_Page_1 0x82c00
Skip_Mask_2 0xffffffff
Skip_Page_2 0xffffffff
Join CE


Chip's initial 90h Read ID returns incorrect result..
Incorrect ID: 98 00 90 82 72 57 09 04
Correct ID: 45 3C 86 93 7A 57 0B 04


SLC Prefix
Cmd 0xA2

Preconditioning #1 Fix ID
Cmd 0x5C 0xC5 0x55
Addr 0x00
Data 0x01

Cmd 0x55
Addr 0x20
Data 0xC0

Cmd 0x55
Addr 0x20
Data 0xC0

Cmd 0x65
Addr 0x00 0x00 0x00
Cmd 0xFD
Wait


Preconditioning #2 Enable DDR Mode

Cmd 0x65
Addr 0x00 0x00 0x00
Cmd 0xEF
Addr 0x10
Data 0x04 0x00 0x00 0x00
 
Cmd 0x65
Addr 0x10 0x10 0x10
Cmd 0xEF
Addr 0x10
Data 0x04 0x00 0x00 0x00
 
Cmd 0x65
Addr 0x20 0x20 0x20
Cmd 0xEF
Addr 0x10
Data 0x04 0x00 0x00 0x00
 
Cmd 0x65
Addr 0x30 0x30 0x30
Cmd 0xEF
Addr 0x10
Data 0x04 0x00 0x00 0x00
 
Cmd 0x65
Addr 0x00 0x00 0x00
 
Cmd 0x5C 0xC5 0x55
Addr 0x00
Data 0x01
 
Cmd 0x55
Addr 0x20
Data 0xDB
 
Cmd 0xFF
Wait
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