ssd1908 Solomon Systech Limited:, ssd1908 Datasheet - Page 93

• Manufacturer Part Number: ssd1908
• Description: Lcd Drivers,lcd Controllers
• Manufacturer: Solomon Systech Limited:

1. t
Note
Minimum three software WAIT states are required.
SSD1908
Symbol
T
f
15
CKIO
CKIO
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
9a
9b
9c
9d
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
is the delay from when data is placed on the bus until the data is latched into the write buffer.
Clock frequency
Clock period
Clock pulse width low
Clock pulse width high
A[17:1], M/R#, RD/WR# setup to CKIO
A[17:1], M/R#, RD/WR# hold from CSn#
BS# setup
BS# hold
CSn# setup
CSn# high setup to CKIO
RD# or WEn# asserted for MCLK = BCLK (max.MCLK=50MHz)
RD# or WEn# asserted for MCLK = BCLK ÷2
RD# or WEn# asserted for MCLK = BCLK ÷3
RD# or WEn# asserted for MCLK = BCLK ÷4
Falling edge RD# to D[15:0] driven (read cycle)
Falling edge CSn# to RDY# driven high
CKIO to RDY# low
CSn# high to RDY# high
Falling edge CKIO to RDY# high impedance
D[15:0] setup to 2
D[15:0] hold (write cycle)
RDY# falling edge to D[15:0] valid (read cycle)
Rising edge RD# to D[15:0] high impedance (read cycle)
Rev 1.0
P 83/83
nd
CKIO after BS# (write cycle) (see note 1)
Table 10-10 : Hitachi SH-4 Interface Timing
Parameter
Oct 2003
3 T
1/f
CKIO
Min
6.8
6.8
1
0
1
2
1
2
3
4
4
4
0
0
3
CKIO
+ 3
3 T
Max
66
13
18
23
28
12
12
18
14
14
12
CKIO
2
Solomon Systech
+
Units
T
T
T
T
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
CKIO
CKIO
CKIO
CKIO
ns
ns
ns
ns
ns
ns
ns
ns
ns