SH7708 Datasheet, PDF (306/633 Pages) Renesas Technology Corp – SuperH™ RISC engine

Memory Card Interface Burst Timing: In the SH7708 Series, when the IC memory card
interface is selected, page mode burst access mode can be used, for read access only, by setting
bits A5BST1 and A5BST0 in BCR for physical space area 5, or bits A6BST1 and A6BST0 for
area 6. This burst access mode is not stipulated in JEIDA version 4.2 (PCMCIA2.1), but allows
high-speed data access using ROM provided with a burst mode, etc.
Burst access mode timing is shown in figures 10.44 and 10.45.
CKIO
Tpcm1 Tpcm2 Tpcm1 Tpcm2 Tpcm1 Tpcm2 Tpcm1 Tpcm2
A25 to A4
A3 to A0
CExx
RD/WR
RD
(read)
D15 to D0
(read)
BS
Figure 10.44 Basic Timing for PCMCIA Memory Card Interface Burst Access
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