Parallel Host Interface (HDI08) Timing
9
The data strobe is host read (HRD) or host write (HWR) in the dual data strobe mode and host data strobe (HDS) in the single
data strobe mode.
10 The host request is HOREQ in the single host request mode and HRRQ and HTRQ in the double host request mode.
11 In this calculation, the host request signal is pulled up by a 4.7 kΩ resistor in the open-drain mode.
317
318
HACK
328
327
326
329
HD7–HD0
HOREQ
AA1105
Figure 3-20 Host Interrupt Vector Register (IVR) Read Timing Diagram
HA0–HA2
336
337
333
330
HCS
317
HRD, HDS
318
319
328
332
327
329
326
341
HD0–HD7
338
340
HOREQ,
HRRQ,
HTRQ
AA0484
Figure 3-21 Read Timing Diagram, Non-Multiplexed Bus
DSP56367 Technical Data, Rev. 2.1
Freescale Semiconductor
3-33
FREESCALE [ Freescale ]
