MPC8272ADS Freescale Semiconductor, MPC8272ADS Datasheet - Page 76

• Manufacturer Part Number: MPC8272ADS
• Description: KIT DEVELOPMENT MPC8272
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8272ADS

• Contents: Board
• For Use With/related Products: MPC8272
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1
Required for voltage levels adaptation.
8-31
0 - 1
2 - 3
4 - 5
8-31
BIT
BIT
Board Control and Status Register - BCSR
7
5.11.5 BCSR4 Board Control—Status Register 4
BCSR4 is a status register which is accessed at offset 0x10 from the BCSR base address.
Its a read- only register which may be read at any time
described in Table 5-17
6
7
1
Provided that BCSR is not disabled.
PCI0_PRSNT(0:1)
PCI1_PRSNT(0:1)
PCI2_PRSNT(0:1)
PCI_MODCK
MNEMONIC
MNEMONIC
PCI_MODE
Reserved
Reserved
M66EN
PCIx_PRSNT (0:1) [Hex]
Table 5-18. PCI Board Present Signal Definitions
Table 5-16. BCSR3 Description (continued)
PCI_MODE. When asserted (low) the Local Bus function is set to PCI.
When negated (high), the Local Bus is set for Local Bus SDRAM.
un-implemented
PCI Slot 0 Present (0:1). This field holds a code that tells whether a PCI
expansion board is plugged in PCI slot 0 and the total power requirements
of the board according to the PCI spec. The different expansion board types
are listed in Table 5-18
PCI Slot 1 Present (0:1). This field holds a code that tells whether a PCI
expansion board is plugged in PCI slot 1 and the total power requirements
of the board according to the PCI spec. The different expansion board types
are listed in Table 5-18
PCI Slot 2 Present (0:1). This field holds a code that tells whether a PCI
expansion board is plunged in PCI slot 2 and the total power requirements
of the board according to the PCI spec. The different expansion board types
are listed in Table 5-18
66MHz Enable. This field shows if one of the expansion boards used is not
capable of operating in 66MHz mode:
‘1’ - All expansion boards are 66MHz capable
‘0’ - One of the expansion boards is not 66MHz capable
PCI_MODCK. This field shows the PCI bus clock settings.
un-implemented
0
1
Table 5-17. BCSR4 Description
MPC8272ADS User Guide
Expansion board present, 7.5W maximum
Expansion board present, 25W maximum
Function
Function
Expansion Configuration
1
. BCSR4s’ various fields are
PON
PON
DEF
DEF
11
11
11
1
-
ATT.
ATT.
R
R
R
R
R
R