參數(shù)資料
型號(hào): μPDPD30101
廠商: NEC Corp.
英文描述: 64-Bit Micro[rocessor(64位微處理器)
中文描述: 64位微[rocessor(64位微處理器)
文件頁數(shù): 89/97頁
文件大?。?/td> 409K
代理商: ΜPDPD30101
μ
PD30101
88
(16)Keyboard interface parameter
Parameter
Symbol
Condition
MIN.
MAX.
Unit
High-level width
Note 1
t
SCAN
30K – 1
30.16K + 1
μ
s
μ
s
μ
s
μ
s
μ
s
Idle time (KSCANn
↓ →
KSCAN (n+1)
)
Note 2
Key scan interval time
Note 3
t
KWAIT
30L – 1
30.16L + 1
t
KI
30M – 1
30.16M + 1
Key input setup time (vs. KSCANn
)
Note 4
Key input hold time (vs. KSCANn
)
Notes 1.
K: Sum of the values set to the T1COUNT (0:4) bits and T2COUNT (0:4) bits of the KIUWKSREG
register
2.
L: Value set to the T3COUNT (0:4) bits of the KIUWKSREG register
3.
M: Value set to KIUWKIREG register
4.
N: Value set to the T1COUNT (0:4) bits of the KIUWKSREG register
t
KS
30N – 1
t
KH
0
(a) Keyboard scan parameter 1
Hi-Z
Hi-z
Hi-Z
t
SCAN
t
KWAIT
KSCANn
(output)
KSCAN (n + 1)
(output)
Remark
n = 0 to 7
(b) Keyboard scan parameter 2
Hi-Z
t
KWAIT
KSCAN0
(output)
KSCAN1
(output)
KSCAN2
(output)
KSCAN7
(output)
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
t
KWAIT
+t
KI
t
KWAIT
(c) Keyboard parameter
Hi-Z
t
KS
KSCANn
(output)
KPORT (0 : 7)
(input)
Hi-Z
t
KH
Remark
n = 0 to 7
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