Table Of Contents - Renesas EMMA Mobile 1 User Manual

CHAPTER 1 OVERVIEW..........................................................................................................................10
1.1 Function Overview ....................................................................................................................10
1.2 Features .....................................................................................................................................10
1.3 I/O Signals..................................................................................................................................10
CHAPTER 2 PIN FUNCTIONS ................................................................................................................11
2.1 UART Interface Pins .................................................................................................................11
CHAPTER 3 REGISTERS ........................................................................................................................12
3.1 Registers....................................................................................................................................12
3.2 UART Registers.........................................................................................................................13
3.2.1 Receive buffer/transmit hold register ............................................................................................ 13
3.2.2 Interrupt enable register ................................................................................................................ 15
3.2.3 Interrupt identification register....................................................................................................... 16
3.2.4 FIFO control register ..................................................................................................................... 18
3.2.5 Line control register ......................................................................................................................21
3.2.6 Modem control register ................................................................................................................. 23
3.2.7 Line status register........................................................................................................................25
3.2.8 Modem status register .................................................................................................................. 27
3.2.9 Scratch register.............................................................................................................................28
3.2.10 Divisor latch LS byte register ........................................................................................................ 28
3.2.11 Divisor latch MS byte register ....................................................................................................... 29
3.2.12 Hardware control register.............................................................................................................. 30
3.2.13 Hardware status register 2 ............................................................................................................ 31
3.2.14 Hardware status register 3 ............................................................................................................ 32
3.3 IR Encoder/Decoder Registers ................................................................................................33
3.3.1 IR control register 0.......................................................................................................................33
3.3.2 IR control register 1.......................................................................................................................34
3.3.3 IR control register 2.......................................................................................................................35
3.3.4 IR control register 3.......................................................................................................................35
3.3.5 IR control register 4.......................................................................................................................36
CHAPTER 4 DESCRIPTION OF FUNCTIONS ......................................................................................37
4.1 Auto-Flow Mode ........................................................................................................................37
4.2 FIFOs ..........................................................................................................................................38
4.2.1 Operation in FIFO interrupt mode ................................................................................................. 38
4.2.2 Operation in FIFO polled mode..................................................................................................... 38
4.2.3 Read when the receive FIFO is empty..........................................................................................38
4.3 Interrupt Sources ......................................................................................................................39
4.4 Clock and Reset ........................................................................................................................39
4.5 I/O Timing...................................................................................................................................39
4.5.1 Serial data.....................................................................................................................................39
4.5.2 Timing of auto-flow CTS control.................................................................................................... 40
4.5.3 Timing of auto-flow RTS control.................................................................................................... 40
CONTENTS
User's Manual S19262EJ3V0UM
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