TMP88CS38 datasheet(178/226 Pages) TOSHIBA

178 / 226 page

TMP88CS38/CM38A/CP38A

2007-09-12

88CS38-178

•

Reading character ornamentation data

Read character ornamentation data SLNT, EUL, BLF, IDT, RDT, GDT, and

BDT. DMA8 to DMA0 are not incremented.

(4) Writing character code or character ornamentation data

•

Set RDWRV to “0”.

•

Writing character code

Write the most significant bit of character code to CRA8. Go on and write

the 8 low-order bits of character code to CRA7 to CRA0. At this point in time,

the 9 bits of character code written are transferred to the display memory, and

DMA8 to DMA0 are automatically incremented.

•

Writing character ornamentation data

Write character ornamentation data to SLNT, EUL, BLF, IDT, RDT, GDT,

and BDT. At this point in time, the character ornamentation data written are

transferred to the display memory, and DMA8 to DMA0 are automatically

incremented.

(5) To continue executing read-modify-write operations, repeat steps (1) to (4). To

read/write data (Character code or character ornamentation data). To

continue executing read-modify-write mode from continuous addresses,

repeat steps (3) and (4).

b. Reading/writing both character code and character ornamentation data in

read-modify-write mode

(1) Set MFYWR to 1, MBK to 1 and RDWRV to 1

(2) Write the most significant address bit of the display memory to DMA8. Go on

and write the 8 low-order address bits of the display memory to DMA7 to

DMA0.

(3) Read character ornamentation data SLNT, EUL, BLF, IDT, RDT, GDT, and

BDT. At this point in time, DMA8 to DMA0 are not incremented.

(4) Read the most significant bit of character code to CRA8. Read the 8 low-order

bits of character code to CRA7 to CRA0. At this point in time, DMA8 to DMA0

are not incremented.

(5) Set RDWRV to “0”.

(6) Write character ornamentation data to SLNT, EUL, BLF, IDT, RDT, GDT, and

BDT. At this point in time, the character ornamentation data written is

transferred to the display memory.

(7) Write the most significant bit of character code to CRA8. Go on and write the 8

low-order bits of character code to CRA7 to CRA0. At this point in time, the 9

bits of character code written and the character ornamentation data written

in step (6) are transferred to the display memory, and DMA8 to DMA0 are

automatically incremented.

(8) To continue executing read-modify-write operations, repeat steps (1) to (7). (To

read/write data to and from continuous addresses in read-modify-write mode,

repeat steps (3) to (7).)

TMP88CS38 Datasheet(PDF) 178 Page - Toshiba Semiconductor

TMP88CS38 Datasheet(HTML) 178 Page - Toshiba Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL