EZ80L92MCU Datasheet, PDF (238/241 Pages) Zilog, Inc. – eZ80Acclaim Flash Microcontrollers

eZ80L92 MCU
Product Specification
223
Problem Description or Suggestion 226
Product Information 226
Programmable Reload Timer Operation 77
Programmable Reload Timer Registers 81
Programmable Reload Timers 76
Programmable Reload Timers Overview 76
pull-up resistor, external 40, 138
PUSH, Op Code Map 191, 193, 195
R
RD—see Read instruction
Read instruction 10–11, 22, 48, 51, 53, 56–57, 60
Assertion Delay 209
Deassertion Delay 209
Reading the Current Count Value 79
Real-Time Clock 88
Alarm 89
Alarm Control Register 102
Alarm Day-of-the-Week Register 101
Alarm Hours Register 100
Alarm Minutes Register 99
Alarm Seconds Register 98
Battery Backup 89
Century Register 97
Control Register 102
Day-of-the-Month Register 94
Day-of-the-Week Register 93
Hours Register 92
Minutes Register 91
Month Register 95
Oscillator and Source Selection 89
Overview 88
Recommended Operation 89
Registers 90
Seconds Register 90
Year Register 96
Receive, Infrared Encoder/Decoder 123
Recommended Usage of the Baud Rate Generator
109
Register Map 25
Request to Send 13, 16, 117, 120, 124
RESET 10–11, 22, 34–36, 39–40, 48, 72–74, 89–
90, 102, 109, 125, 132, 170, 172, 184–185
Or NMI Generation 73
Reset States 49
Resetting the I²C Registers 150
Return Information 226
RI—see Ring Indicator
RI0 15, 124
RI1 17, 41
Ring Indicator 15, 17, 106, 117, 120
RTS—see Request to Send
RTS0 13
RTS1 16
RxD0 13
RxD1 15
S
Schmitt Trigger 11
SCK—see System Clock, SPI
SCL—see System Clock, I²C
SCL line 141–143
SDA—see Serial Data, I²C
serial bus, SPI 136, 137
Serial Clock 129, 138
I²C 20
SPI 18, 128
Serial Data 128, 138
I²C 20, 24, 138–140, 142, 149
Serial Peripheral Interface 1, 37, 45, 127–128, 130
Baud Rate Generator 131
Baud Rate Generator Register 28
Baud Rate Generator Registers—Low Byte and
High Byte 132
Block 28
Control Register 28, 134
Data Rate 131
Flags 130–131, 135–137
Functional Description 130
interrupt service routine 45
Master device 19–20, 132
MASTER mode 130
mode 18
Receive Buffer Register 28, 137
Registers 132
serial bus 136
PS013012-1004
PRELIMINARY
Index