Oki MICROLINE 320 Turbo Maintenance Manual page 12

(3) RAM
The RAM is CMOS dynamic RAM with 256K × 16bits (4Mbit), and used as buffers (such
as receiving buffer, printing buffer, DLL buffer and working buffer).
The following shows the examples of the memory access operation.
* Clockout is provided when the original excitation is selected.
42089201TH Rev.4
MPU
P04
P03
CAS-N
CS1
WRH-N
P11
WRL-N
WRL
D0~D15
RD
Clockout* T1
A0~A7
LGAS
RD
D0~D15
(Read)
WE
D0~D15
(Write)
16-bit bus, byte instruction
RAM
A0~A7
RAS
UCAS-N
UCAS
LS139
LCAS-N
LCAS
WE-N
ALS11
WE
OE
T2 T3
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