NS32FX100-15 Datasheet, PDF (2/94 Pages) National Semiconductor (TI) – System Controller

Table of Contents
1 0 FAX SYSTEM CONFIGURATION
6
1 1 Block Diagram Description
6
1 2 Module Diagram
7
1 2 1 Bus and Memory Controller (BMC)
8
1 2 2 Timing Control Unit (TCU)
8
1 2 3 Sigma-Delta CODEC (SDC)
8
1 2 4 Scanner Controller (SCANC)
8
1 2 5 Printer Controller (PRNTC)
8
1 2 6 DMA Controller (DMAC)
8
1 2 7 Universal Asynchronous Receiver-Transmitter
(UART)
8
1 2 8 MICROWIRE (MWIRE)
8
1 2 9 Interrupt Control Unit (ICU)
8
1 2 10 Ports
8
1 3 Operation Modes
8
1 3 1 Functionality
9
2 0 ARCHITECTURE
10
2 1 MCFG Module Configuration Register
10
2 2 Timing Control Unit (TCU)
10
2 2 1 Features
10
2 2 2 Operation
10
2 2 2 1 External Clocks
11
2 2 2 2 Internal Clocks
11
2 2 3 Registers
12
2 2 3 1 Usage Recommendations
13
2 3 Sigma-Delta CODEC (SDC)
13
2 3 1 Features
13
2 3 2 Operation
13
2 3 2 1 Block Diagram
13
2 3 2 2 On-Chip Digital Blocks
15
2 3 3 Programmable Functions
15
2 3 3 1 Sigma-Delta ON OFF
15
2 3 4 Off-Chip Analog Circuits
15
2 3 4 1 Analog Transmitter
17
2 3 4 2 Analog Receiver
17
2 3 5 Registers
17
2 3 6 Usage Recommendations
18
2 4 Scanner Controller (SCANC)
18
2 4 1 Features
18
2 4 2 Operation
18
2 4 2 1 Scanner Signals Generator Block 19
2 4 2 2 Scanner Period Pulse (SPP)
Generation
20
2 4 2 3 Video Handling Block
21
2 4 2 4 Threshold DAC (Dithering and
Automatic Background Control) 22
2 4 2 5 Stepper Motor Control Block
23
2 0 ARCHITECTURE (Continued)
2 4 3 Registers
23
2 4 4 Usage Recommendations
24
2 5 Printer Controller (PRNTC)
25
2 5 1 Features
25
2 5 2 Operation
25
2 5 2 1 Printer Bitmap Shifter Block
25
2 5 2 2 Thermal Print-Head Control Block 25
2 5 3 Registers
28
2 5 4 Usage Recommendations
28
2 6 Direct Memory Access Controller (DMAC)
29
2 6 1 Features
29
2 6 2 Description
29
2 6 2 1 A General DMA Channel
29
2 6 2 2 Transfer Types
29
2 6 2 3 Operation Modes
29
2 6 3 Detailed Operation Flow
29
2 6 4 NS32FX200 DMA Channels
30
2 6 5 Registers
30
2 6 6 Usage Recommendations
32
2 6 7 DMAC Bus Cycles
32
2 7 Universal Asynchronous Receiver-Transmitter
(UART)
36
2 7 1 Features
36
2 7 2 Operation
36
2 7 3 Registers
37
2 7 4 Usage Recommendations
38
2 8 MICROWIRE (MWIRE)
38
2 8 1 Features
38
2 8 2 Operation
38
2 8 3 Registers
38
2 8 4 Usage Recommendations
40
2 9 Interrupt Control Unit (ICU)
40
2 9 1 Features
40
2 9 2 Operation
40
2 9 3 Registers
41
2 9 4 Usage Recommendations
41
2 10 Ports Module
41
2 10 1 Features
41
2 10 2 Operation
41
2 10 2 1 General Purpose Input Output
Ports
41
2 10 2 2 External Output Port Extension 43
2 10 2 3 Stepper Motors Output Ports 43
2 10 3 Registers
43
2 10 4 Usage Recommendations
45
2