HD6417606 RENESAS [Renesas Technology Corp], HD6417606 Datasheet - Page 330

• Manufacturer Part Number: HD6417606
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 13 Host Interface (HIF)
13.3
13.3.1
The HIF can be accessed by combining the HIFCS, HIFRS, HIFWR, and HIFRD pins. Table 13.2
shows the correspondence between combinations of these signals and HIF operations.
Table 13.2 HIF Operations
[Legend]
×:
13.3.2
When connecting the HIF to an external device, a method like that shown in figure 13.2 should be
used.
Rev. 4.00 Sep. 13, 2007 Page 304 of 502
REJ09B0239-0400
HIFCS
1
0
0
0
0
0
0
Don't care
Parallel Access
Operation
Connection Method
HIFRS
×
0
1
×
×
0
1
HIFWR
×
1
0
1
0
1
0
Figure 13.2 HIF Connection Example
External device
D15 to D00
HIFRD
×
0
1
0
1
1
0
A02
WR
CS
RD
Operation
No operation (NOP)
Read from register specified by HIFIDX[7:0]
Write to register specified by HIFIDX[7:0]
Read from status register (HIFGSR[7:0])
Write to index register (HIFIDX[7:0])
No operation (NOP)
Setting prohibited
HIFCS
HIFRS
HIFWR
HIFRD
HIFD15 to HIFD00
HIF