Panasonic JB-3300 Technical Manual page 176

(4) *WE ODD
LOW when data 1s written in an odd-numbered address of VRAM
(XABO is HIGH). Makes RAM Write-Enabled. (Figure 5-31)
oO VRAM read timing chart
XABO —JF
*VRAMSEL ——J \
*MEMR |
*VRAM EVEN f
Oo VRAM write timing chart
XABO
| J
*VRAMSEL —
*MEMW
*CLK1 *CRTADR
*VRAM EVEN 1)
*WE EVEN [
Figure 5-31 Memory Address Decorder Timing Chart
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