MSM66591 Datasheet, PDF (110/466 Pages) OKI electronic componets – CMOS 16-bit microcontroller

MSM66591/ML66592 User's Manual
Chapter 4 CPU Control Functions
External
V_DD
Internal
V_DD
Di
RES
SW
R
C
4
Reset Processing Circuit
SW and R are needed for manual reset.
Figure 4-3 Reset Pin Connection Example
Name
Status
Table 4-2 Output Pin Status at Reset
P2–P6, P7_0, P7_1,
P0
P1
P7_2, P7_3
P7_2, P7_3
(EA pin: "L" level) (EA pin: "H" level) ^{P7_4–P7_7, P8–P11,}
P12_0, P12_1
Hiz Hiz "H" level (pull-up)
Hiz
Hiz
Notes:
1. If the EA pin is at a "L" level and external memory is selected, P7_2, P7_3, P0, P1,
P12_0, and P12_1 (ML66592 only) will automatically take their secondary functions
and go into an operating state.
2. Hiz refers to the high impedance status.
4-7