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CONTENTS
FIGURES
Figure Page
2-1 87C196CB Block Diagram............................................................................................2-2
2-2 Clock Circuitry ..............................................................................................................2-3
2-3 Internal Clock Phases ..................................................................................................2-4
2-4 Effect of Clock Mode on CLKOUT Frequency..............................................................2-5
4-1 Interrupt Mask 1 (INT_MASK1) Register......................................................................4-2
4-2 interrupt Pending 1 (INT_PEND1) Register..................................................................4-2
5-1 Port
x
Pin Input (P
x
_PIN) Register...............................................................................5-1
5-2 Extended Port I/O Direction (EP_DIR) Register...........................................................5-2
5-3 Extended Port Mode (EP_MODE) Register .................................................................5-2
5-4 Extended Port Input (EP_PIN) Register.......................................................................5-3
5-5 Extended Port Data Output (EP_REG) Register..........................................................5-3
6-1 A/D Command (AD_COMMAND) Register..................................................................6-2
6-2 A/D Result (AD_RESULT) Register — Read Format...................................................6-3
7-1 A System Using CAN Controllers.................................................................................7-1
7-2 CAN Controller Block Diagram.....................................................................................7-2
7-3 CAN Message Frames.................................................................................................7-7
7-4 A Bit Time as Specified by the CAN Protocol.............................................................7-10
7-5 A Bit Time as Implemented in the CAN Controller .....................................................7-11
7-6 CAN Control (CAN_CON) Register............................................................................7-13
7-7 CAN Bit Timing 0 (CAN_BTIME0) Register................................................................7-15
7-8 CAN Bit Timing 1 (CAN_BTIME1) Register................................................................7-16
7-9 CAN Standard Global Mask (CAN_SGMSK) Register...............................................7-18
7-10 CAN Extended Global Mask (CAN_EGMSK) Register ..............................................7-19
7-11 CAN Message 15 Mask (CAN_MSK15) Register.......................................................7-20
7-12 CAN Message Object
x
Configuration (CAN_MSGxCFG) Register...........................7-21
7-13 CAN Message Object
x
Identifier (CAN_MSG
x
ID0–3) Register ................................7-22
7-14 CAN Message Object
x
Control 0 (CAN_MSGxCON0) Register...............................7-24
7-15 CAN Message Object
x
Control 1 (CAN_MSG
x
CON1) Register...............................7-26
7-16 CAN Message Object Data (CAN_MSG
x
DATA0–7) Registers..................................7-28
7-17 CAN Control (CAN_CON) Register............................................................................7-29
7-18 CAN Message Object
x
Control 0 (CAN_MSGxCON0) Register...............................7-31
7-19 CAN Interrupt Pending (CAN_INT) Register..............................................................7-32
7-20 CAN Status (CAN_STAT) Register............................................................................7-33
7-21 CAN Message Object
x
Control 0 (CAN_MSG
x
CON0) Register...............................7-34
7-22 Receiving a Message for Message Objects 1–14 — CPU Flow ................................7-36
7-23 Receiving a Message for Message Object 15 — CPU Flow......................................7-37
7-24 Receiving a Message — CAN Controller Flow...........................................................7-38
7-25 Transmitting a Message — CPU Flow .......................................................................7-39
7-26 Transmitting a Message — CAN Controller Flow.......................................................7-40
8-1 Clock Circuitry ..............................................................................................................8-1
9-1 Modes 0 and 3 Timings................................................................................................9-2
9-2 Chip Configuration 1 (CCR1) Register.........................................................................9-3
10-1 Auto Programming Circuit ..........................................................................................10-3
A-1 87C196CB 84-pin PLCC Package ..............................................................................A-2