TMP86PM74AFG Datasheet, PDF (161/190 Pages) Toshiba Semiconductor – 8 Bit Microcontroller

TMP86PM74AFG
15.5 Example of Display Operation
15.5.1 For Conventional type VFT
When using the conventional type VFT, the output timing of the digits is specified to output 1 digit for 1 tim-
ing. Data must be set to output the pins which are specified to the digit in sequence. The following figure
shows a data allocation of the display data buffer (DBR) and the output timing when VFT of 10 digits is used
and V0 to V9 pins are allocated as the digit outputs. (When data is first written by the data buffer which corre-
sponds to the digit pin, it is unnecessary to rewrite the data later.)
T 9876543210
Add- ^{0 0 0 0 0 0 0 0 0 0}
ress ^{F F F F F F F F F F}
9988888888
9876543210
V0 _LSB
V1
V2
V3
V4
V5
V6
V7 _MSB
00000001
00000010
00000100
00001000
00010000
00100000
01000000
10000000
V8
V9
SEG
SEG
SEG
SEG
SEG
SEG
LSB 0 1
10
**
**
**
**
**
MSB _{* *}
SEG (Write change by display data)
T9 T8 T7 T6 T5 T4 T3 T2 T1 T0
G0
G1
G2
G3
G4
G5
G6
G7
G8
G9
Figure 15-4 Example of Conventional type VFT driver pulse
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