RX − 8564 LC
CONTENTS
1. Overview
...................................................................................................................1
2. Block diagram
.........................................................................................................1
3. Terminal description
.............................................................................................2
3.1. Terminal connections
..............................................................................................................2
3.2. Pin Functions
.............................................................................................................................2
4. External Dimensions / Marking Layout
..........................................................3
4.1. External Dimensions
................................................................................................................3
4.2. Marking Layout
..........................................................................................................................3
5. Absolute Maximum Ratings
..............................................................................4
6. Recommended operating conditions
.............................................................4
7. Frequency Characteristics
.................................................................................4
8. Electrical Characteristics
....................................................................................5
8.1. DC characteristics
....................................................................................................................5
8.2. AC electrical characteristics
..................................................................................................6
9. Reference data
......................................................................................................7
10. External connection example
.........................................................................8
11. Application notes
................................................................................................9
12. Overview of Functions and Description of Registers
..........................10
12.1. Overview of Functions
........................................................................................................10
12.2. Register table
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13. Description of Functions
................................................................................12
13.1. Description of registers
.......................................................................................................12
13.1.1. Control register 1 ( Reg − 00 [h] ) ...................................................................................12
13.1.2. Control register 2 ( Reg − 01 [h] ) ...................................................................................13
13.1.3. Clock counter ( Reg − 02 [h] to 04 [h] ) ...........................................................................14
13.1.4. Calendar counter ( Reg − 05 [h] , 07 [h] , 08 [h] )............................................................15
13.1.5. Day counter ( Reg − 6[h] ) .............................................................................................15
13.1.6. Alarm registers ( Reg − 09 [h] to 0C [h] ) ........................................................................16
13.1.7. Timer setting register ( Reg − 0E [h] )............................................................................16
13.1.8. Down counter for fixed-cycle timer ( Reg − 0F [h] ).........................................................16
13.1.9. CLKOUT output register (Reg - 0D [h]) ..........................................................................17
13.2. Fixed-cycle Timer Interrupt Function
.............................................................................18
13.3. Alarm Interrupt Function
....................................................................................................25
13.4. /INT "L" Interrupt Output When Interrupt Function Operates
.................................28
13.5. Flow Charts
............................................................................................................................29
13.6. Reading/Writing Data via the I
2
C Bus Interface
.........................................................32
