AN2398 Freescale Semiconductor / Motorola, AN2398 Datasheet - Page 17

• Manufacturer Part Number: AN2398
• Description: In-Circuit Programming of FLASH Memory via the Universal Serial Bus for the MC68HC908JB8
• Manufacturer: Freescale Semiconductor / Motorola

V_UDR_Size
V_Config_Value
;* --------------------------------------------------------------------
V_TRF_Status
b_ADDR_SET
b_WAIT_ADDR
b_ST_WAIT
b_ST_TYPE
b_OUT_DONE
;
ADDR_BIT
ADDR_WAIT
STATUS_WAIT
STATUS_TYPE
DO_USBOUT
;*---------------------------------------------------------------------
;usb_status
V_Rx_Cnt
V_Tx_Cnt
V_Rx_Ptr
V_Tx_Ptr
V_UDR_Ptr
;* -----------------------------------------------------
V_Toggle_Buf
SEQ_MASK
b_SEQ_BIT
;* ====== Variables for ICP ===========================================
V_ICP_CMMD
b_PROG_Set
b_Erase_Set
b_Mass_Erase
b_Read_Set
b_Verify_Set
b_Do_Read
b_Data_OK
;* ------------------------------------
V_ICP_Status
b_Ready
b_Busy
b_Fail
;* ------------------------------------
;* --- [RAM Routine] copy content of VD_Opd1[x] to VD_Opd2 ---
;* -- called in GET_DESC() --
; equivalent to :
;
;
D_LONG_LDAX
VI_LDA
VI_Opd1_H
VI_Opd1_L
VI_STA
VI_Opd2_H
VI_Opd2_L
VI_RTS
Var_End
MOTOROLA
In-Circuit Programming of FLASH Memory via the USB for the MC68HC908JB8
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1
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0
1
2
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$01
$02
$04
$08
$10
1
1
1
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$80
7
1
0
1
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6
7
1
0
1
2
lda
sta
rts
*
1
1
1
1
1
1
1
*
Freescale Semiconductor, Inc.
For More Information On This Product,
; 1:device address is assigned
; 1:ADDR_request is waiting for status stage
; 1:status_stage is waiting
; 1:IN status stage
; 1:OUT data stage is done::usb_proc()
<VD_Opd1_H:L>,x
<VD_Opd2 H:L>,X
Go to: www.freescale.com
; <for Device Command Handler>
; Opcode of LDA(16-bit Idx) = $D6
; Offset(High byte)
; Offset(Low byte)
; Opcode of STA(direct) = $D7
; Offset(High)
; Offset(Low)
; Opcode of RTS = $81
APPENDIX: Code Listing
AN2398/D
17