Instruction Set: Arithmetic Operations, Logical Operations, Boolean Va
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8-bit Embedded Microcontroller Core Optimized Control Applications Microcode, Software-compatible with Industry-standard 8032 Devices:
Instruction Set: Arithmetic Operations, Logical Operations, Boolean Variable Manipulation, Data Transfer, Program Branching Same Execution Timing Harvard Architecture, featuring separate program data memories: Bytes Program Memory Address Space (EEPROM Flash Memory) Bytes Data Memory Address Space (RAM EEPROM) bytes Internal External Bi-directional Individually Addressable Port Pins Three 16-bit Timer/Counters Full-duplex UART Source/6 Vector Interrupt Structure with Priority Levels Full Scan Memory BIST Implemented Fault Coverage Implemented 15000 Gates (without internal RAM)
Embedded Microcontroller Core AT_8032
Description
AT_8032 8-bit embedded microcontroller core based microcode that software-compatible (instruction execution timing) with industry-standard 8032 devices. manufactured using Atmel's high-density CMOS technology ideal medium complexity embedded control functions cost-sensitive applications. Figure Symbol
P0_i<7:0> P1_i<7:0> P2_i<7:0> P3_i<7:0>
AT8032 Communication Port
P0_o<7:0> P1_o<7:0> P2_o<7:0> P3_o<7:0>
Clock Input
P0_en
Enable Control
P1_e<7:0> P2_e<7:0> P3_e<7:0>
TEST_SE TEST_SI1 TEST_SI2 TEST_SI3 TEST_SI4
SCAN
TEST_SO1 TEST_SO2 TEST_SO3 TEST_SO4
BIST_TEST BIST_CLK
BIST
BIST_RESULT
RESET
Miscellaneous
RESET_BSTPS TEST
obs_uart obs_int obs_timer PSEN
Rev. 0875BS-11/98
Operation
AT_8032 three separate address spaces: bytes external program EEPROM Flash Memory, bytes external data EEPROM, bytes internal data RAM. device includes three 16-bit timer/counters with configurations, full-duplex serial UART port with configurations. AT_8032 also provides interrupt sources vectors) with priority levels. Each interrupt source individually enabled disabled, programmed priority levels.
Table Processor Inputs
Signal P0_i (7:0) P1_i (7:0) P2_i (7:0) P3_i (7:0) TEST_SE TEST_SI1-4 BIST_TEST BIST_CLK RESET RESET_BSTPS TEST Description Input port data bits down Input port data bits down Input port data bits down Input port data bits down Clock Scan shift enable (active high) Scan chain input Bist enable (active high) Bist generator system clock Reset status flags zero Reset time base Select test mode
Signal Description
AT_8032 inputs outputs. cells included design, bi-directional lines split into input output sections, have associated control lines enabling disabling tristate buffers where appropriate. There individual enable lines each output ports. This allow implementation "quasi bi-directional" features original device. ports enable output mode; port high. Port single enable line bits; ports have individual enables bit. port connected externally bi-directional port configuration), must have external pull-up. output ports input used access external memory. Port outputs byte external memory address, time-multiplexed with byte being written read. external memory address bits wide, port outputs high address byte. Ports used general-purpose channels. addition, lines port port multi-functional. Their alternate functions shown Table
AT_8032
AT_8032
Table Processor Outputs
Signal P0_o (7:0) P1_o (7:0) P2_o(7:0) P3_o (7:0) P0_en P1_e (7:0) P2_e (7:0) P3_e (7:0) TEST_SO1-4 BIST_RESULT PSEN OBS_UART OBS_INT OBS_TIMER Description Output port data bits down Output port data bits down Output port data bits down Output port data bits down Bi-directional control line port High output -directional control lines port output -directional control lines port output -directional control lines port output Scan chain output Output result External Program Memory Enable Address latch Enable Increase testability UART block Increase testability INTERRUPT block Increase testability TIMER block P3.6 P3.7 Output Output P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 INT0 INT1 Input Output Input Input Input Input P1.0 P1.1
Table Alternate Functions
Signal Alternate Function T2EX Type Input Input Description Timer/counter external input Timer/counter capture/reload UART serial input port UART serial output port External interrupt External interrupt Timer/counter external input Timer/counter external input External data memory write strobe External data memory read strobe
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Atmel Corporation 1998. Atmel poration makes warranty products, other than those expressly contained Company's standard warranty which detailed Atmel's Terms Conditions located Company's site. Company assumes responsibility errors which appear this document, reserves right change devices specifications detailed herein time without notice, does make commitment update information contained herein. licenses patents other intellectual proper Atmel granted Company connection with sale Atmel products, expressly implication. Atmel's products authorized critical components life suppor devices systems. Marks bearing
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0875BS-11/98/xM
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