MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 625

• Manufacturer Part Number: MPC8544COMEDEV
• Description: KIT DEV EXPRESS MPC8544COM
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8544COMEDEV

• Contents: Board
• For Use With/related Products: MPC8544
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 14-2
Freescale Semiconductor
LCS[0:7]
Signal
LALE
LSYNC_OUT
LSYNC_IN
LUPWAIT/
LAD[0:31]
LCLK[0:2]
LSDRAS/
LSDCAS/
LA[27:31]
MSRCID
LGPL4/
contains detailed external signal descriptions for the LBC.
MDVAL
LGPL2
LGPL3
LPBSE
LGPL5
LBCTL
Name
LGTA/
LCKE
LOE/
LDP
I/O
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
O External address latch enable. The local bus memory controller provides control for an external address
O Chip selects. Eight chip selects are provided which are mutually exclusive.
latch, which allows address and data to be multiplexed on the device signals.
Meaning
Meaning
State
State
Table 14-2. Local Bus Controller Detailed Signal Descriptions
Number of
Signals
Asserted/Negated—LALE is asserted with the address at the beginning of each memory
Asserted/Negated—Used to enable specific memory devices or peripherals connected to the
Table 14-1. Signal Properties—Summary (continued)
32
1
1
1
1
1
5
4
1
3
1
1
1
5
controller transaction. The number of cycles for which it is asserted is governed by the
ORn[EAD] and LCRR[EADC] fields. The exact timing of the negation of LALE is controlled
by the LBCR[AHD] field. Note that no other control signals are asserted during the
assertion of LALE.
LBC. LCS[0:7] are provided on a per-bank basis with LCS0 corresponding to the chip
select for memory bank 0, which has the memory type and attributes defined by BR0 and
OR0.
Input/Output Multiplexed address/data bus
Input/Output Local bus data parity
Direction
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
GPCM mode: output enable
SDRAM mode: row address strobe
UPM mode: general-purpose line 2
SDRAM mode: column address strobe
UPM mode: general-purpose line 3
GPCM mode: transaction termination
UPM mode: general-purpose line 4
UPM mode: external device wait
Local bus parity byte select
UPM mode: general-purpose line 5
Data buffer control
Local bus non-multiplexed address lsbs
Local bus clock enable
Local bus clocks
PLL synchronize input
PLL synchronize output
In LBC debug mode: local bus data valid
In LBC debug mode: local bus source ID
Description
Function
Local Bus Controller
14-5