MSC8113 Reference Manual, Rev. 0
3-16
Freescale Semiconductor
External Signals
3.5 Memory Controller Signals
Refer to the Memory Controller chapter in the MSC8113 Reference Manual for details on
configuring these signals.
Table 3-6. Memory Controller Signals
Signal Name
Type
Description
BCTL0
Output
System Bus Buffer Control 0
Controls buffers on the data bus. Usually used with BCTL1. The exact function of this pin is
defined by the value of SIUMCR[BCTLC].
BCTL1
CS5
Output
Output
System Bus Buffer Control 1
Controls buffers on the data bus. Usually used with BCTL0. The exact function of this pin is
defined by the value of SIUMCR[BCTLC].
System and Local Bus Chip Select 5
Enables specific memory devices or peripherals connected to MSC8113 buses.
BM[0–2]
TC[0–2]
BNKSEL[0–2]
Input
Input/
Output
Output
Boot Mode 0–2
Defines the boot mode of the MSC8113. This signal is sampled on PORESET deassertion.
Transfer Code 0–2
The bus master drives these pins during the address tenure to specify the type of the code.
Bank Select 0–2
Selects the SDRAM bank when the MSC8113 is in 60x-compatible bus mode.
ALE
Output
Address Latch Enable
Controls the external address latch used in an external master bus.
PWE[0–3]
PSDDQM[0–3]
PBS[0–3]
Output
Output
Output
System Bus Write Enable
Outputs of the bus general-purpose chip-select machine (GPCM). These pins select byte
lanes for write operations.
System Bus SDRAM DQM
From the SDRAM control machine. These pins select specific byte lanes of SDRAM devices.
System Bus UPM Byte Select
From the UPM in the memory controller, these signals select specific byte lanes during
memory operations. The timing of these pins is programmed in the UPM. The actual driven
value depends on the address and size of the transaction and the port size of the accessed
device.
PSDA10
PGPL0
Output
Output
System Bus SDRAM A10
From the bus SDRAM controller. The precharge command defines which bank is
precharged. When the row address is driven, it is a part of the row address. When column
address is driven, it is a part of column address.
System Bus UPM General-Purpose Line 0
One of six general-purpose output lines from the UPM. The values and timing of this pin are
programmed in the UPM.
PSDWE
PGPL1
Output
Output
System Bus SDRAM Write Enable
From the bus SDRAM controller. Should connect to SDRAM WE input.
System Bus UPM General-Purpose Line 1
One of six general-purpose output lines from the UPM. The values and timing of this pin are
programmed in the UPM.
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 ...