Table of Contents
Advertisement
TOSHIBA
TMP 8048A/TMP 8035A, TMP 8049A/TMP 8039A
Stack Pointer
/
I
C
I
AC
I
FO
I
BS
11 I
S2
I
Sl
I
SO
MSB
I
II
LSB
' _ _ _ _ _ 11
Saved in stack area
Spare ("1" during Read)
at the time of Sub-
routine Call.
Bits 0 - 2
Bit
3
Stack Pointer Bits (SO, 51, 52)
Not used
("1"
level when read.)
Working Register Bank Switch Bit (BS)
Bit
4
Bit
5
Bit 6
Bit 7
o
==
Bank 0
1
==
Bank
1
Flag 0 (FO)
Auxiliary Carry CAC) carry bit generated by an
ADD
instruction and used by the decimal adjust instruction
DA, A (Ae)
Carry (C) flag which indicates that the previous opera-
tion has resulted in the accumulator. (C)
(9)
Reset
• The reset input provides a means for initialization of the processor.
This Schmitt trigger input has an internal pullup register which in
combination with an external luF capacitor provides an internal reset
pulse
sufficient
length
to
guarantee
that
all
internal
logic
is
initialized.
RESET
MCU48-13
Hide quick links:
Advertisement
Table of Contents
