W78E58B/W78E058B Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1. GENERAL DESCRIPTION ............................................................................................................... 3
2. FEATURES....................................................................................................................................... 3
3. PIN CONFIGURATIONS .................................................................................................................. 4
4. PIN DESCRIPTION .......................................................................................................................... 5
5. FUNCTIONAL DESCRIPTION ......................................................................................................... 6
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
RAM....................................................................................................................................... 6
Timers 0, 1 and 2................................................................................................................... 6
Clock...................................................................................................................................... 7
Crystal Oscillator.................................................................................................................... 7
External Clock........................................................................................................................ 7
Power Management............................................................................................................... 7
Reduce EMI Emission ........................................................................................................... 7
Reset...................................................................................................................................... 7
Port 4 ..................................................................................................................................... 9
5.10 INT2 /INT3 ............................................................................................................................ 9
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
6.2
6.3
6.4
Lock Bit ................................................................................................................................ 19
MOVC Inhibit ....................................................................................................................... 19
Encryption............................................................................................................................ 20
Oscillator Control ................................................................................................................. 20
7. ELECTRICAL CHARACTERISTICS............................................................................................... 21
7.1
7.2
7.3
Absolute Maximum Ratings................................................................................................. 21
D.C. Characteristics............................................................................................................. 21
A.C. Characteristics............................................................................................................. 23
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
Clock Input Waveform...........................................................................................................23
Program Fetch Cycle ............................................................................................................23
Data Read Cycle...................................................................................................................24
Data Write Cycle...................................................................................................................24
Port Access Cycle.................................................................................................................24
Publication Release Date: December 4, 2006
- 1 -
Revision A8
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