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參數(shù)資料
| 型號(hào)： | MPC555 |
| 廠商： | Motorola, Inc. |
| 元件分類： | 32位微控制器 |
| 英文描述： | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| 中文描述： | 高度集成，低功耗，32位微控制器 |
| 文件頁(yè)數(shù)： | 29/32頁(yè) |
| 文件大?。?/td> | 219K |
| 代理商： | MPC555 |
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Application Note
Reference Information
AN1778
MOTOROLA
29
#***************
# Initialize the TI Flash DCR register
# set up extended pin set, 3 blocks, and place
# device into normal read mode.
write -l 0x800000 = 0x96
write -l 0x800000 = 0x5b
write -l 0x800000 = 0xFF
TI Flash
*********************************
#***************
# Set up the SRAM chip select and option register br1 & or1
# single read, 4M address space, 0 wait states
# EVB555 uses 1M for external SRAM,
# 1M for PRU
# 1M for optional HCE board,
# 1M for optional ETK SRAM
# the MPCF555FADS board only requires 1M of address space
# change to write -l 0x2fc10c = 0xfff00000
# (see table 10-7 & 10-8 of the MPC555 User Manual)
# base address is 0x00C00000
write -l 0x2fc10c = 0xffc00000
write -l 0x2fc108 = 0x00C00003
BR1/OR1
*********************************
#***************
# these next lines set up set up chip select 2 for Altera
# br2 & or2 - this is the board configuration registers
# 32k block (MPC555FADS board only)
# (see table 10-7 & 10-8 of the MPC555 User Manual)
# base address is 0xFFFF8000
write -l 0x2fc114 = 0xffff8120
write -l 0x2fc110 = 0xFFFF8001
BR2/OR2
*********************************
#***************
# Set IMB to full speed -- this can only be set
# back to half speed with a hard reset.
# (see table 12-6 of the MPC555 User Manual)
write -l 0x307f80 = 0x0
UMCR
**********************************
#***************
# Turn on the time base, on during BDM freeze
# (see table 6-16 of the MPC555 User Manual)
write -w 0x2fc200 = 0x0001
TBSCR
**********************************
#***************
# Set the slew rate of the MIOS pins to fast
# (default is 200ns rise/fall time)
# also turns off pull-up/down devices
# (see table 2-3 of the MPC555 User Manual)
write -l 0x2fc03c = 0x13000000
PDMCR
**********************************
#*************** end of basic initialization *******************
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