UART Registers: Difference between revisions
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It looks like there are 7 UART devices/ports. The i-th device has its base registers address at <code>SceUartReg + i * 0x10000</code>. | It looks like there are 7 UART devices/ports. The i-th device has its base registers address at <code>SceUartReg + i * 0x10000</code>. Known ports are listed in [[UART Console]]. | ||
The clock generator configuration for each of these devices is at <code>SceUartClkgenReg + i * 4</code>. | The clock generator configuration for each of these devices is at <code>SceUartClkgenReg + i * 4</code>. | ||
Revision as of 05:45, 28 January 2018
MMIO Interfaces
| Name | Physical address | Size |
|---|---|---|
| SceUartReg | 0xE2030000 | 0x70000 |
| SceUartClkgenReg | 0xE3105000 | 0x1000 |
It looks like there are 7 UART devices/ports. The i-th device has its base registers address at SceUartReg + i * 0x10000. Known ports are listed in UART Console.
The clock generator configuration for each of these devices is at SceUartClkgenReg + i * 4.
SceUartReg registers
| Offset | Size | Description |
|---|---|---|
| 0x04 | 4 | Enable device (1 = enable, 0 = disable) |
| 0x10 | 4 | ?? |
| 0x1C | 4 | ?? |
| 0x20 | 4 | ?? |
| 0x28 | 4 | Device status |
| 0x30 | 4 | ?? |
| 0x40 | 4 | ?? A 0 is written here
|
| 0x50 | 4 | ?? |
| 0x54 | 4 | A 0x77F is written here after reading from the FIFO
|
| 0x60 | 4 | ?? |
| 0x64 | 4 | ?? A 0x10001 is written here
|
| 0x68 | 4 | Read FIFO data available |
| 0x70 | 4 | Write FIFO |
| 0x78 | 4 | Read FIFO |
Device status
| Bit(s) | Description |
|---|---|
| 8 | Write FIFO not full (0 = full) |
| 9 | Device ready (0 = busy) |
Read FIFO data available
| Bit(s) | Description |
|---|---|
| 0-5 | Number of words available to read |
| 6-31 | Unused |
SceUartClkgenReg registers
| Offset | Size | Description |
|---|---|---|
| 0x00 | 4 | Clock generator for device 0 |
| 0x04 | 4 | Clock generator for device 1 |
| 0x08 | 4 | Clock generator for device 2 |
| 0x0C | 4 | Clock generator for device 3 |
| 0x10 | 4 | Clock generator for device 4 |
| 0x14 | 4 | Clock generator for device 5 |
| 0x18 | 4 | Clock generator for device 6 |
Baud rate to SceUartClkgenReg register value
| Baud rate | Register value |
|---|---|
| 300 | 0x12710 |
| 600 | 0x11388 |
| 1200 | 0x109C4 |
| 2400 | 0x104E2 |
| 4800 | 0x10271 |
| 9600 | 0x10139 |
| 14400 | 0x100D0 |
| 19200 | 0x1009C |
| 28800 | 0x10068 |
| 38400 | 0x1004E |
| 57600 | 0x10034 |
| 115200 | 0x1001A |
| 230400 | 0x1000D |
| 250000 | 0x1000C |
| 460800 | 0x2001A |
| 921600 | 0x2000D |
| 3000000 | 0x10001 |