tmp88cs34ng TOSHIBA Semiconductor CORPORATION, tmp88cs34ng Datasheet - Page 179

• Manufacturer Part Number: tmp88cs34ng
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

1.
<Display memory write sequence in normal mode>
(a) When writing either character code or character ornamentation data
(b) When writing character code and character ornamentation data at a time
Normal mode
data is read from or written to the memory. Because addresses are automatically incremented,
this mode may be used for reading from or writing data to multiple continuous addresses
simultaneously.
In normal mode, the display memory addresses are automatically incremented each time
(1) Set MFYWR, MBK, and RDWRV all to 0.
(2) Write the most significant address bit of the display memory to DMA8. Go on and write
(3) Writing character code or character ornamentation data
(4) To write data (character code or character ornamentation data) to continuous
(1) Set MFYWR to 0, MBK to 1, and RDWRV to 0.
(2) Write the most significant address bit of the display memory to DMA8. Go on and write
(3) Write character ornamentation data to SLNT, EUL, BLF, ECBKD, RDT, GDT, and
(4) Write the most significant bit of character code to CRA8. Go on and write the 8
(5) To write data to continuous addresses, repeat steps (3) and (4).
the 8 low-order address bits of the display memory to DMA7 to DMA0.
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addresses, repeat step (3).
the 8 low-order address bits of the display memory to DMA7 to DMA0.
BDT. At this point in time, the character ornamentation written are transferred to the
display memory.
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 (3) are
transferred to the display memory, and DMA8 to DMA0 are automatically
incremented.
low-order bits of character code to CRA7 through 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.
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.
Writing character code
Writing character ornamentation data
Write the most significant bit of character code to CRA8. Go on and write the 8
Write character ornamentation data to SLNT, EUL, BLF, ECBKD, RDT, GDT,
88CS34-179
TMP88CS34/CP34
2007-09-12