參數(shù)資料
型號(hào)： MC68MH360ZQ25LR2
廠商： Freescale Semiconductor
文件頁數(shù)： 157/158頁
文件大小： 0K
描述： IC MPU QUICC 25MHZ 357-PBGA
標(biāo)準(zhǔn)包裝： 180
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： 帶卷 (TR)
QMC Supplement
Step 16. Initialize channel-specic parameters for HDLC or transparent mode as follows.
For more information on HDLC, see Section 2.4.1, “Channel-Specic HDLC Parameters,”
and for transparent mode, see Section 2.4.2, “Channel-Specic Transparent Parameters.”
Repeat for each of the enabled channels.
TBASE: TxBD descriptors base address. Initialize to location of rst TxBD =
MCBASE+TBASE.
RBASE: RxBD descriptors base address. Initialize to location of rst RxBD =
MCBASE+RBASE.
ch[0].RBASE = 0;
/* locate CH0 RxBDS at 0 */
ch[0].TBASE = 8;
/* locate CH0 TxBDS at 8 */
ch[1].RBASE = 0x10;
/* locate CH1 RxBDS 0x10 */
ch[1].TBASE = 0x18;
/* locate CH1 TxBDS 0x18 */
ch[2].RBASE = 0x20;
/* locate CH2 RxBDS 0x20 */
ch[2].TBASE = 0x28;
/* locate CH2 TxBDS 0x28 */
ch[3].RBASE = 0x30;
/* locate CH3 RxBDS 0x30 */
ch[3].TBASE = 0x38;
/* locate CH3 TXBDS 0x38 */
Copy RBASE to RBPTR (Rx buffer descriptor pointer) and TBASE to TBPTR (Tx
buffer descriptor pointer).
ch[x].TBPTR = ch[x].TBASE;
ch[x].RBPTR = ch[x].RBASE;
TSTATE: Tx internal state. For the MH360, this is typically 0x3800_0000. For the
860MH, this is typically 0x3000_0000.
ch[x].TSTATE = 0x3800_0000;
/* setting for MH360 */
ch[x].TSTATE = 0x3000_0000;
/* setting for 860MH */
RSTATE: Rx internal state. For the MH360, this is typically 0x3900_0000. For the
860MH, this is typically 0x3100_0000.
ch[x].RSTATE = 0x3900_0000;
/* setting for MH360 */
ch[x].RSTATE = 0x3100_0000;
/* setting for 860MH */
ZISTATE: zero insertion should be initialized to 0x0000_0100.
ch[x].ZISTATE = 0x100;
ZDSTATE: zero deletion machine state should be initialized to 0x1800_0080 for
transparent mode or 0x0000_0080 for HDLC.
ch[x].ZDSTATE = 0x80;
/* set ZDZTATE for HDLC */
INTMSK: channel’s interrupt mask ags. Bits should be set to enable the
corresponding interrupts.
ch[x].INTMSK = 0xA;
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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