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Figure
2-1
8XC196NT Block Diagram ...........................................................................................2-2
2-2
Block Diagram of the Core ...........................................................................................2-2
2-3
Clock Circuitry ..............................................................................................................2-6
2-4
Internal Clock Phases ..................................................................................................2-7
4-1
16-Mbyte Address Space .............................................................................................4-2
4-2
Pages FFH and 00H.....................................................................................................4-3
4-3
Internal RAM Control (IRAM_CON) Register .............................................................4-11
4-4
Register File Memory Map .........................................................................................4-12
4-5
Windowing ..................................................................................................................4-15
4-6
Window Selection Register (WSR).............................................................................4-16
4-7
The 24-bit Program Counter.......................................................................................4-24
4-8
Formation of Extended and Nonextended Addresses................................................4-25
4-9
A 64-Kbyte System with an 8-bit Bus .........................................................................4-29
4-10
A 64-Kbyte System with Additional Data Storage ......................................................4-31
4-11
A 1-Mbyte System with a 16-bit Bus...........................................................................4-33
4-12
A 1-Mbyte System with an 8-bit Bus...........................................................................4-35
5-1
Flow Diagram for PTS and Standard Interrupts ...........................................................5-2
5-2
Standard Interrupt Response Time ..............................................................................5-9
5-3
PTS Interrupt Response Time ....................................................................................5-10
5-4
PTS Select (PTSSEL) Register ..................................................................................5-12
5-5
Interrupt Mask (INT_MASK) Register.........................................................................5-13
5-6
Interrupt Mask 1 (INT_MASK1) Register....................................................................5-14
5-7
Interrupt Pending (INT_PEND) Register ....................................................................5-17
5-8
Interrupt Pending 1 (INT_PEND1) Register ...............................................................5-18
5-9
PTS Control Blocks ....................................................................................................5-19
5-10
PTS Service (PTSSRV) Register ...............................................................................5-20
5-11
PTS Mode Selection Bits (PTSCON Bits 7:5) ............................................................5-21
5-12
PTS Control Block – Single Transfer Mode................................................................5-22
5-13
PTS Control Block – Block Transfer Mode .................................................................5-25
5-14
PTS Control Block – A/D Scan Mode .........................................................................5-27
5-15
A Generic PWM Waveform ........................................................................................5-32
5-16
PTS Control Block – PWM Toggle Mode ...................................................................5-34
5-17
EPA and PTS Operations for the PWM Toggle Mode Example.................................5-36
5-18
PTS Control Block – PWM Remap Mode...................................................................5-39
5-19
EPA and PTS Operations for the PWM Remap Mode Example ................................5-41
6-1
Standard Input-only Port Structure ...............................................................................6-2
6-2
Bidirectional Port Structure...........................................................................................6-7
6-3
Address/Data Bus (Ports 3 and 4) Structure ..............................................................6-16
6-4
EPORT Block Diagram...............................................................................................6-20
6-5
EPORT Structure .......................................................................................................6-22
7-1
SIO Block Diagram .......................................................................................................7-1
7-2
Typical Shift Register Circuit for Mode 0 ......................................................................7-4
7-3
Mode 0 Timing..............................................................................................................7-5
7-4
Serial Port Frames for Mode 1 .....................................................................................7-6
FIGURES
CONTENTS
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xiii
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