參數(shù)資料
型號(hào): MC68MH360CZQ25L
廠商: Freescale Semiconductor
文件頁數(shù): 114/158頁
文件大?。?/td> 0K
描述: IC MPU QUICC 25MHZ 357-PBGA
標(biāo)準(zhǔn)包裝: 44
系列: M683xx
處理器類型: M683xx 32-位
速度: 25MHz
電壓: 5V
安裝類型: 表面貼裝
封裝/外殼: 357-BBGA
供應(yīng)商設(shè)備封裝: 357-PBGA(25x25)
包裝: 托盤
Chapter 2. QMC Memory Organization
For the 860MH, RSTATE should be initialized to 0x3100_0000 before enabling the channel
—AT = 1. Note that for the 860MH, bit 4 should always be zero as only bits 5–7 map to
AT[1–3]. Table 2-15 describes the RSTATE elds for the 860MH with boldfaced
parameters to be initialized by the user.
Table 2-15. RSTATE Field Descriptions for 860MH (Transparent Mode)
Field
Name
Description
0–1
0
2—
1
3
MOT
Motorola/Intel bit
0 = The bus format is Intel format (little-endian).
1 = The system bus is considered to be organized in Motorola format (big-endian).
4—
0
5–7
AT[1–3]
Address type—This eld contains the address type for the transmitter DMA channel for data
buffers in external memory (transmit buffers). Address types are needed by the memory
controller to decode a correct memory cycle and activate the correct handshaking.
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For More Information On This Product,
Go to: www.freescale.com
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