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EM78P221/2N
IBM EM78P221/2N Manuals
Manuals and User Guides for IBM EM78P221/2N. We have
1
IBM EM78P221/2N manual available for free PDF download: Specification
IBM EM78P221/2N Specification (70 pages)
IBM 8-Bit Microcontroller Product Specification
Brand:
IBM
| Category:
Network Card
| Size: 0 MB
Table of Contents
Table of Contents
3
EM78P221/2N-V Package Version
7
Read Me First
7
EM78P221/2N-U Package Version
7
1 General Description
8
2 Features
8
3 Pin Assignment
9
4 Pin Description
10
Em78P222N
10
Em78P221N
11
5 Block Diagram
12
6 Function Description
13
Register Configuration
13
Registers Description
14
A (Accumulator)
14
CONT (Control Register)
14
R0 (Indirect Addressing Register)
15
R1 (Memory Switch Register)
15
R2 (Program Counter and Stack)
15
R3 (Status Register)
16
R4 (Select Indirect Address)
17
Bank 0-R5 (Port 5)
17
Bank 0-R6 (Port 6)
17
Bank 0-R7 (Port 7)
17
Bank 0-R8 (Port 8)
17
Bank 0-R9~RD (Reserve)
17
Bank 0-RE (WUCR: Wake-Up Control Register)
18
Bank 0-RF (Interrupt Status Register)
18
Bank 1-R5 ~R7 (I/O Port Control Register)
19
Bank 1-R8 (I/O Port Control Register)
19
Bank 1-R9 (Reserve)
20
Bank 1-RA (CMPCON: Comparator Control Register)
20
Bank 1-RB (Pull-Down Control Register)
21
Bank 1-RC (Open-Drain Control Register)
21
Bank 1-RD (Pull-High Control Register)
22
Bank 1-RE (WDT Control Register)
22
Bank 1-RF (Interrupt Mask Register)
23
Bank 2-R5 (HDCR: High Drive Control Register for Port 6)
24
Bank 2-R6 (HSCR1: High Sink Control Register for Port 5)
24
Bank 2-R7 (HSCR2: High Sink Control Register for Port 6)
25
Bank 2-R8 (Operating Mode Control Register)
25
Bank 2-R9~RF (Reserve)
25
Bank 3-R5 (Timer Clock/Counter)
25
Bank 3-R6 (IRC Control)-Only for ICE
26
Bank 3-R7 (Noise and LVR Control) - Only for ICE
27
Bank 3-R8~RF (Reserve)
27
R10 ~ R1F
27
Banks 0~3 - R20 ~ R3F
27
TCC/WDT and Prescaler
28
I/O Ports
29
Usage of Port 6 Input Change Wake-Up/Interrupt Function
31
Reset and Wake-Up
32
Reset and Wake-Up Operation
32
Wake-Up and Interrupt Modes Operation Summary
34
Register Initial Values after Reset
36
Controller Reset Block Diagram
40
The T and P Status under Status Register
41
Interrupt
42
Comparator
44
External Reference Signal
44
Comparator Outputs
44
Using a Comparator as an Operation Amplifier
45
Bank 0-RE (WUCR: Wake-Up Control Register)
45
Bank 1-RA (CMPCON: Comparator Control Register)
46
Bank 1-RE (WDT Control Register)
46
Comparator Interrupt
46
Wake-Up from Sleep Mode
46
Oscillator
47
Oscillator Modes
47
Crystal Oscillator/Ceramic Resonators (Crystal)
47
External RC Oscillator Mode
50
Internal RC Oscillator Mode
51
Power-On Considerations
51
External Power-On Reset Circuit
51
Residual Voltage Protection
52
Low Voltage Reset
52
Code Option
53
Code Option Register (Word 0)
53
Code Option Register (Word 1)
55
Customer ID Register (Word 2)
56
Instruction Set
56
7 Absolute Maximum Ratings
59
600 DC Electrical Characteristics
59
Comparator (OP) Characteristic
61
9 AC Electrical Characteristic
61
10 Timing Diagrams
62
A Package Type
63
Appendix
63
B Packaging Configuration
64
24-Lead Plastic Skinny Dual in Line (SDIP) - 300 Mil
64
24-Lead Plastic Small Outline (SOP) - 300 Mil
65
24-Lead Plastic Shrink Small Outline (SSOP) - 209 Mil
66
28- Lead Plastic Skinny Dual in Line (SDIP) - 300 Mil
67
28-Lead Plastic Small Outline (SOP) - 300 Mil
68
28- Lead Plastic Shrink Small Outline (SSOP) - 209 Mil
69
C Quality Assurance and Reliability
70
Address Trap Detect
70
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