NEC PD78F9488 - Manual (Page 222)

CHAPTER 12 SERIAL INTERFACE 1A0
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User’s Manual U15331EJ4V1UD
(3) Automatic data transmit/receive interval specification register 0 (ADTI0)
This register sets the automatic data transmit/receive function data transfer interval.
ADTI0 is set via a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
Figure 12-4. Format of Automatic Data Transmit/Receive Interval Specification Register 0 (1/2)
Symbol <7> 6 5 <4> <3> <2> <1> <0> Address After reset R/W
ADTI0 ADTI07 0 0 ADTI04 ADTI03 ADTI02 ADTI01 ADTI00 FF7BH 00H R/W
ADTI07 Data transfer interval control
0 No control of interval by ADTI00 to ADTI04 Note 1
1 Control of interval by ADTI00 to ADTI04
ADTI04 ADTI03 ADTI02 ADTI01 ADTI00 Data transfer interval specification
(f
X
= 5.0 MHz, f
SCK
= 1.25 MHz) Note 2
n
0 0 0 0 0 0
0 0 0 0 1
1.60 µ s + 0.5/f SCK
1
0 0 0 1 0 2.40 µ s + 0.5/f
SCK
2
0 0 0 1 1 3.20 µ s + 0.5/f
SCK
3
0 0 1 0 0 4.00 µ s + 0.5/f
SCK
4
0 0 1 0 1 4.80 µ s + 0.5/f
SCK
5
0 0 1 1 0 5.60 µ s + 0.5/f
SCK
6
0 0 1 1 1 6.40 µ s + 0.5/f
SCK
7
0 1 0 0 0 7.20 µ s + 0.5/f
SCK
8
0 1 0 0 1 8.00 µ s + 0.5/f
SCK
9
0 1 0 1 0 8.80 µ s + 0.5/f
SCK
10
0 1 0 1 1 9.60 µ s + 0.5/f
SCK
11
0 1 1 0 0 10.4 µ s + 0.5/f
SCK
12
0 1 1 0 1 11.2 µ s + 0.5/f
SCK
13
0 1 1 1 0 12.0 µ s + 0.5/f
SCK
14
0 1 1 1 1 12.8 µ s + 0.5/f
SCK
15