BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 331

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.11.6
(1) Page write (2LC type)
――― Main Program ―――
――― INTTC Interrupt Processing Program ―――
――― Main Program ―――
;
; ***** Initialize NDFC *****
;
;
NDFMCR0
NDFMCR1
NDFMCR2
NDFINTC
; ***** Setting Command, Address to NAND-Flash *****
;
NDFMCR0
NDFDTR
NDFMCR0
NDFDTR
NDFMCR0
; ***** Writing 512Byte Valid data *****
;
Have the DMAC and INTC support the Autoload function of 512-byte write data. (Details are omitted.)
NDFMCR1
;
NDFMCR1
NDFMCR0
Return to the main program
; ***** Reading ECC from NDFC *****
NDECCRD0
NDECCRD1
; ***** Writing Dummy data & ECC code*****
;
NDFDTR
NDFDTR
;
;
;
;
NDFDTR
NDFDTR
;
;
;
Examples of Accessing the NAND-Flash
The following example shows the example of NAND Flash memory accessing. This
example is showing the set-up procedure. Please note that we do not warrant the
operation shown below. Please use it as a guide in programming.
Condition: 8bit-bus, CE0, SLC, 512 Byte/Page, Hamming
←
←
←
←
→
→
←
←
←
←
←
←
←
←
←
←
→
←
Read
Read
0x0000_0010
0x0000_0000
0x0000_3343
0x0000_0000
0x??
ECC
0x??
ECC
Read and check
0x0000_0090
0x0000_00b0
0x80
0x0000_00d0
0x??
0x0000_0095
0x0000_0300
TENTATIVE
TMPA900CM- 330
; NDREn L = 4clks,H = 3clks
; NDCE0n pin = 0, ECC-disable
; ECC = Hamming
; NDWEn L = 3clks,H =3clks,
; ALL Interrupt Disable
; ECC Enable and Reset
; Check that <ALS> = 0 (end). If not, perform polling.
; ECC for the first 256 bytes
; ECC for the second 256 bytes
; Write ECC (1 byte x 3 times)
Write to D520: LPR7:0
Write to D521: LPR15:8
;NDCE0n pin = 0, NDCLE = 1, NDALE = 0
; Write Command (1
;NDCE0n pin = 0, NDCLE = 0, NDALE = 1
; Write Address (n-times)
;NDCE0n pin = 0, NDCLE = 0, NDALE = 0
; <SELALS> = 1, Start Auto-Load
; ECC-Disable
; Write dummy data (1 byte x 8 times)
Write to D522: CPR5:0+11b
; Write dummy data (1 byte x 2 times)
; Write ECC (1byte x 3 times)
Write to D525:LPR7:0
Write to D526:LPR15:8
Write to D527:CPR5:0+11b
(Including INTTC interrupt enable)
st-
cycle of Page-Program)
For second 256 bytes
For second 256 bytes
For second 256 bytes
For first 256 bytes
For first 256 bytes
For first 256 bytes
TMPA900CM
2009-10-14