upd7566a Renesas Electronics Corporation., upd7566a Datasheet - Page 4

• Manufacturer Part Number: upd7566a
• Description: 4-bit Single-chip Microcomputer
• Manufacturer: Renesas Electronics Corporation.

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PIN FUNCTIONS ...............................................................................................................................
1.1
1.2
1.3
1.4
1.5
1.6
1.7
INTERNAL FUNCTIONAL BLOCKS .................................................................................................
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
STANDBY FUNCTIONS ...................................................................................................................
3.1
3.2
3.3
3.4
3.5
RESET FUNCTION ............................................................................................................................
4.1
INSTRUCTION SET ..........................................................................................................................
ELECTRICAL SPECIFICATIONS .......................................................................................................
CHARACTERISTIC DATA .................................................................................................................
APPLICATION CIRCUITS .................................................................................................................
PACKAGE DRAWING .......................................................................................................................
PORT FUNCTIONS .................................................................................................................................
OTHER FUNCTIONS ...............................................................................................................................
MASK OPTIONS FOR PINS ...................................................................................................................
NOTES ON USING THE P00/INT0, AND RESET PINS .........................................................................
PIN I/O CIRCUITS ...................................................................................................................................
RECOMMENDED PROCESSING OF UNUSED PINS............................................................................
I/O PORT OPERATIONS .........................................................................................................................
PROGRAM COUNTER (PC) ....................................................................................................................
STACK POINTER (SP) ............................................................................................................................
PROGRAM MEMORY (ROM) .................................................................................................................
GENERAL-PURPOSE REGISTERS .........................................................................................................
DATA MEMORY (RAM) .........................................................................................................................
ACCUMULATOR (A) ...............................................................................................................................
ARITHMETIC LOGIC UNIT (ALU) ..........................................................................................................
PROGRAM STATUS WORD (PSW) .......................................................................................................
SYSTEM CLOCK GENERATOR .............................................................................................................
CLOCK CONTROL CIRCUIT ...................................................................................................................
TIMER/EVENT COUNTER ......................................................................................................................
TEST CONTROL CIRCUIT ......................................................................................................................
STOP MODE ...........................................................................................................................................
HALT MODE ............................................................................................................................................
RELEASING STOP MODE BY USING RESET INPUT...........................................................................
RELEASING HALT MODE BY USING TEST REQUEST FLAGS ..........................................................
RELEASING HALT MODE BY USING RESET INPUT ...........................................................................
INITIALIZATION ......................................................................................................................................
CONTENTS
PD7566A, 7566A(A)
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