參數(shù)資料
型號: DS80C400-FNY
廠商: Maxim Integrated Products
文件頁數(shù): 69/97頁
文件大小: 0K
描述: IC MCU 75MHZ 16MB HP 100-LQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
產(chǎn)品變化通告: Product Discontinuation 20/Feb/2012
標(biāo)準(zhǔn)包裝: 90
系列: 80C
核心處理器: 8051
芯體尺寸: 8-位
速度: 75MHz
連通性: 1 線,CAN,EBI/EMI,以太網(wǎng),SIO,UART/USART
外圍設(shè)備: 電源故障復(fù)位,WDT
輸入/輸出數(shù): 64
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: ROM
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 3.6 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-LQFP
包裝: 托盤
配用: DS80C400-KIT#-ND - EVAL KIT FOR DS80C400
DS80C400 Network Microcontroller
71 of 97
DS80C400 ROM Initialization Code
The 80C400 firmware automatically executes Initialization Code (ROM_Init) to generate the memory map as shown
in Figure 13 and configure the DS80C400 hardware as follows:
Enables 24-bit contiguous address mode
(ACON.1:0 = 11b)
Logically relocates ROM to addresses FF0000h–FF7FFFh
(ACON.5 =1)
Enables CE0–3, 2MB/chip enable
(P4CNT = 2Fh)
Enables PCE0–3
(P5CNT = 07h)
Enables CE4–7, 1M/peripheral chip enable
(P6CNT = 27h)
Merged program/data CE0–3, relocate internal XRAM
(MCON = AFh)
Enables extended 1kB stack option
(ACON.2 = 1)
Configure to maximum MOVX stretch value
(CKCON.2:0 = 111b)
Configure UARTs for Mode 1 serial operation
Figure 13. Memory Map Following Execution of ROM_Init
00FFFFh
800000h -
A00000h -
C00000h -
E00000h -
FFFFFFh -
600000h -
400000h -
200000h -
000000h -
INTERNAL MEMORY
program
data
EXTERNAL MEMORY
merged program/data space
CE7
CE6
CE5
CE4
CE3
CE2
CE1
CE0
DATA INACCESSIBLE
64kB SRAM REQUIRED
PROGRAM
INACCESSIBLE
ROM
CAN/BCU XRAM
FF0000h
FFDB00h
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