S1D13704 Epson Electronics America, Inc., S1D13704 Datasheet - Page 36

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S1D13704

Manufacturer Part Number
S1D13704
Description
LCD Controller
Manufacturer
Epson Electronics America, Inc.
Datasheet

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Page 30
7.1.3 Motorola M68K #1 Interface Timing
S1D13704
X26A-A-001-06
UDS#, LDS#
Symbol
DTACK#
D[15:0]
D[15:0]
A[16:1]
T
f
(read)
(write
t10
t11
t12
CLK
CLK
t1
t2
t3
t4
t5
t6
t7
t8
t9
CLK
AS#
CS#
R/W#
Bus Clock Frequency
Bus Clock period
A[15:1], CS# valid before AS# falling edge
A[15:1], CS# hold from AS# rising edge
AS# low to DTACK# driven high
CLK to DTACK# low
CLK to AS#, UDS#, LDS# high
AS# high to DTACK# high
AS# high to DTACK# high impedance
UDS#, LDS# falling edge to D[15:0] valid (write cycle)
D[15:0] hold from AS# rising edge (write cycle)
D[15:0] valid to DTACK# falling edge (read cycle)
UDS#, LDS# falling edge to D[15:0] driven (read cycle)
UDS#, LDS# rising edge to D[15:0] high impedance
INVALID
Hi-Z
T
Hi-Z
CLK
Note
CLK may be turned off (held low) between accesses - see Section 13.5, “Turning Off
BCLK Between Accesses” on page 87
t1
Table 7-3: M68K #1 Bus Timing (MC68000)
t3
Hi-Z
Figure 7-3: M68K #1 Bus Timing (MC68000)
Parameter
t10
t8
t4
VALID
t11
t5
VALID
VALID
1/f
1T
Min
0
0
0
0
CLK
0
CLK
t9
t2
t12
t6
Epson Research and Development
Hardware Functional Specification
t7
T
T
Max
33
16
15
20
15
10
CLK
CLK
Vancouver Design Center
Hi-Z
Hi-Z
Issue Date: 02/02/01
Units
Hi-Z
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns

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