MSC8113 Reference Manual, Rev. 0
6-14
Freescale Semiconductor
Boot Program
The UART is initialized as follows:
9600 baud rate (at an IPBus rate of 100 MHz):
One start bit, eight data bits, one stop bit.
Wake up by idle line.
Parity function disabled.
TxD actively driven as an output.
Full-duplex operation.
At the end of the UART loading process, all SC140 cores jump to address 0x0 of their M1
memory.
6.6 Booting from I²C Slave Memory Device
In a system that boots from an I
2
C slave memory device, when the MSC8113 boot program
finishes its default initialization, it starts to retrieve blocks from an external I
2
C-slave memory
device such as a serial EPROM, using the I
2
C SM (see Chapter 24, I²C Software Module) that is
implemented in the boot code. The I
2
C slave device address is 1010A
0
A
1
A
2
b where the A
0
A
1
A
2
bits are
the high bits of the address being retrieved. The address field is 19 bit(3 additional bits
from the I
2
C slave device address), thus enable accesses of up to 1 MB of memory array. In a
multi-master environment, the I
2
C SM allows concurrent starts of block retrieves, so multiple
masters concurrently load code and data (using the loose arbitration scheme of the I
2
C protocol),
thus reducing the loading time of any number of masters to the loading time of one master.
Blocks are retrieved and written to internal memory until End Block is acknowledged. The first
block resides at address 0x70020 of the I
2
C slave memory. At the end of the I
2
C loading process,
all SC140 cores jump to address 0x0 of their M1 memory. See Table 6-6 for details.
Summary of Contents for MSC8113
Page 1: ...MSC8113 Reference Manual Tri Core 16 Bit Digital Signal Processor MSC8113RM Rev 0 May 2008 ...
Page 20: ...MSC8113 Reference Manual Rev 0 xx Freescale Semiconductor Contents ...
Page 28: ...MSC8113 Reference Manual Rev 0 xxviii Freescale Semiconductor ...
Page 56: ...MSC8113 Reference Manual Rev 0 1 28 Freescale Semiconductor MSC8113 Overview ...
Page 76: ...MSC8113 Reference Manual Rev 0 2 20 Freescale Semiconductor SC140 Core Overview ...
Page 134: ...MSC8113 Reference Manual Rev 0 4 30 Freescale Semiconductor System Interface Unit SIU ...
Page 168: ...MSC8113 Reference Manual Rev 0 6 18 Freescale Semiconductor Boot Program ...
Page 180: ...MSC8113 Reference Manual Rev 0 7 12 Freescale Semiconductor Clocks ...
Page 260: ...MSC8113 Reference Manual Rev 0 8 80 Freescale Semiconductor Memory Map ...
Page 300: ...MSC8113 Reference Manual Rev 0 9 40 Freescale Semiconductor Extended Core ...
Page 304: ...MSC8113 Reference Manual Rev 0 10 4 Freescale Semiconductor MQBus and M2 Memory ...
Page 308: ...MSC8113 Reference Manual Rev 0 11 4 Freescale Semiconductor SQBus ...
Page 590: ...MSC8113 Reference Manual Rev 0 17 46 Freescale Semiconductor Interrupt Processing ...
Page 614: ...MSC8113 Reference Manual Rev 0 18 24 Freescale Semiconductor Debugging ...
Page 622: ...MSC8113 Reference Manual Rev 0 19 8 Freescale Semiconductor Internal Peripheral Bus IPBus ...
Page 724: ...MSC8113 Reference Manual Rev 0 21 32 Freescale Semiconductor UART ...
Page 920: ...MSC8113 Reference Manual Rev 0 25 150 Freescale Semiconductor Ethernet Controller ...
Page 1171: ...MSC8113 Reference Manual Rev 0 Freescale Semiconductor C 61 EF wait_rts P 01077FFC 9F rts 71 ...
Page 1172: ...MSC8113 Reference Manual Rev 0 C 62 Freescale Semiconductor MSC8113 Boot Code ...
Page 1202: ...MSC8113 Reference Manual Rev 0 Index 30 Freescale Semiconductor Index ...