EM78159NAS EMC [ELAN Microelectronics Corp], EM78159NAS Datasheet - Page 34

• Manufacturer Part Number: EM78159NAS
• Description: 8-Bit Microcontroller with OTP ROM
• Manufacturer: EMC [ELAN Microelectronics Corp]

EM78P159N
8-Bit Microcontrollerwith OTP ROM
30 •
4.8 CODE Option Register
Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
4.8.1 Code Option Register (Word 0)
Bit 0 ~ Bit 2 (PR0 ~ PR2): Protect bits
The above are theoretical values and are provided for reference only. Actual values
may vary depending on actual process.
The EM78P159N has a CODE option word that is not a part of the normal program
memory. The option bits cannot be accessed during normal program execution.
-
C3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Code Option Register and Customer ID Register Arrangement Distribution:
Calibration Selection for Internal RC Mode
-
Bit12 ~ Bit0
Word 0
C2
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
-
PR0 ~ PR2 are protect bits. Protect types are as follows:
C1
-
0
0
1
0
0
1
1
1
1
0
0
1
0
0
1
1
PR2
0
0
0
0
1
1
1
1
CLKS0 ENWDTB OSC2 OSC1 OSC0 HLP
C0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
Bit 7
(This specification is subject to change without further notice)
Bit12 ~ Bit0
PR1
WORD 0
0
0
1
1
0
0
1
1
Word 1
Cycle Time (ns)
Bit 6
390.6
365.0
342.5
322.6
304.9
289.0
274.7
261.8
250.0
239.2
229.4
220.3
211.9
204.1
196.7
190.1
Bit 5
Product Specification (V1.0) 03.10.2006
PR0
Bit 4
0
1
0
1
0
1
0
1
Bit 3
Frequency (MHz)
Bit12 ~ Bit0
Bit 2
PR2
Word 2
Protect
Disable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
2.56
2.74
2.92
3.28
3.46
3.64
3.82
4.00
4.18
4.36
4.54
4.72
5.08
5.26
3.1
4.9
Bit 1
PR1
Bit 0
PR0