
W78E58B/W78E058B Data Sheet
8-BIT MICROCONTROLLER
Publication Release Date: December 4, 2006
- 1 -
Revision A8
Table of Contents-
1.
GENERAL DESCRIPTION............................................................................................................... 3
2.
FEATURES....................................................................................................................................... 3
3.
PIN CONFIGURATIONS .................................................................................................................. 4
4.
PIN DESCRIPTION .......................................................................................................................... 5
5.
FUNCTIONAL DESCRIPTION ......................................................................................................... 6
5.1
RAM....................................................................................................................................... 6
5.2
Timers 0, 1 and 2................................................................................................................... 6
5.3
Clock...................................................................................................................................... 7
5.4
Crystal Oscillator.................................................................................................................... 7
5.5
External Clock........................................................................................................................ 7
5.6
Power Management............................................................................................................... 7
5.7
Reduce EMI Emission ........................................................................................................... 7
5.8
Reset...................................................................................................................................... 7
5.9
Port 4 ..................................................................................................................................... 9
5.10
5.11
Port 4 Base Address Registers ........................................................................................... 11
5.12
In-System Programming (ISP) Mode................................................................................... 13
5.13
In-System Programming Control Register (CHPCON) ....................................................... 15
5.14
F04KBOOT Mode (Boot From LDROM) ............................................................................. 15
6.
SECURITY...................................................................................................................................... 19
6.1
Lock Bit................................................................................................................................ 19
6.2
MOVC Inhibit ....................................................................................................................... 19
6.3
Encryption............................................................................................................................ 20
6.4
Oscillator Control................................................................................................................. 20
7.
ELECTRICAL CHARACTERISTICS............................................................................................... 21
7.1
Absolute Maximum Ratings................................................................................................. 21
7.2
D.C. Characteristics............................................................................................................. 21
7.3
A.C. Characteristics............................................................................................................. 23
7.3.1
Clock Input Waveform...........................................................................................................23
7.3.2
Program Fetch Cycle............................................................................................................23
7.3.3
Data Read Cycle...................................................................................................................24
7.3.4
Data Write Cycle...................................................................................................................24
7.3.5
Port Access Cycle.................................................................................................................24
INT2
/
NT3
I
............................................................................................................................ 9