ꢀ ꢁ ꢂꢃ ꢄ ꢅ ꢆꢃ ꢅ
ꢇ ꢈꢉ ꢈꢊꢋ ꢌ ꢀꢈ ꢉꢍ ꢋ ꢌ ꢎ ꢏꢐ ꢆꢑ ꢀꢀ ꢐꢏ
SGUS014H − FEBRUARY 1991 − REVISED JUNE 2004
XF0 and XF1 timing when executing LDFI or LDII
The following table defines the timing parameters for XF0 and XF1 during execution of LDFI or LDII.
timing parameters for XF0 and XF1 when executing LDFI or LDII (see Figure 14)
320C30-40
320C30-50
†
NO.
UNIT
MIN
MAX
13
MIN
MAX
12
38
39
40
t
t
t
Delay time, H3 high to XF0 low
Setup time, XF1 valid before H1 low
Hold time, XF1 after H1 low
ns
ns
ns
d(H3H-XF0L)
su(XF1-H1L)
h(H1L-XF1)
9
0
9
0
†
Numbers in this column match those used in Figure 14.
Fetch
LDFI or LDII
Decode
Read
Execute
H3
H1
(M)STRB
(X)R/W
(X)A
(X)D
(X)RDY
38
39
XF0
XF1
40
Figure 14. Timing for XF0 and XF1 When Executing LDFI or LDII
22
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