Hitachi AP1 Data Book page 219

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - L C D - I V
2. Status column shows the factor which affects status by the instruction of status change.
NZ .......... ALU Not Zeto
C .......... ALU Overflow in Addition/Carry
NB .......... ALU Overflow in Subtraction/No Borrow
except above .... Content of status column affects status directly.
3. Carry flip-flop is not always affected by executing the instruction which affects the Status.
Instructions which affect Carry flip·flop are eight as follows.
AMC SEe
SMC REC
DAA ROTL
DAS ROTR
4, All instructions except for
P
are executed in single cycle.
P
is executed in 2 cycles.
The Difference between LCD-III and LCD-IV
No. Difference LCD-III LCD-IV
(Program Memory) (Program Memory)
1 ROM
2,048 words 4,096 words
(Pattern Memory)
(Includes Pattern Memory)
128 words
2 RAM
160 digits
256 digits
3
Cycle Time lOlls/cycle
5lls/cycle
(VCC = 5V±1()otiJ)
(fcp = 400 kHz) (fcp = 800 kHz)
Stored Reset
4 Circuit (Power- Yes No
on Reset)
Select Option Selected by Mask Option list When ordering ROM, selected by Mask
(Note) But when program evalua-
OPtion list or by program using internal
tion with HD44797E, set
register R6.
up the option with the
(Mask Option List + Program)
register as LCD-IV.
5
Crystal for
R6\ = 0
(No crystal for timer)
Timer
R6\ = 1
(With crystal for timer)
Internal
" -
R62 = 0 (With internal halt)
Halt
R62 = 1
(No internal halt).
I/O Condition
R63 = 0 (Enable)
at "Halt" state
R63 = 1
(Disable)
Refer to the manual as for circuit
Circuit constants of resistor oscillation and
constant of resistor oscillation and ceramic oscillation are undecided.
6
Oscillator
ceramic oscillation. (As for low voltage operation board
(Vce = 2.5 to 5.5Vl, undecided that
seramic filter can be used or not.)
7
Reset Address
31-3F
63-3F (Bank 1)
ROM is divided in 2 Banks.
8 Bank Register No Bank Register
r~63-3F
When call or branch
(ROM
~ )
to other Bank, execute
Addressing)
CALL or BRL after
:E
12k words 32·00 changing Bank Register
~I BankO
31·3F (R7).
l
2k Words
o.L
[R7
=
0 (Bank 1 side)
J
--
R7
=
1 (Bank 0 side)
9 Absolute Maximum
Rating VT2 for
Terminal Voltage of
-0.3 to
I
+10.0V
I
-0.3 to
I
Vee + 0.3V
I
Open Drain Configu-
ration Output Pins (same as VT \ )
and I/O Common
Pins
(to be continued)
217