參數(shù)資料
型號: PSD4235G2
英文描述: Flash In-System-Programmable Peripherals for 16-Bit MCUs(用于16位MCU的閃速在系統(tǒng)可編程外圍芯片)
中文描述: Flash在系統(tǒng)可編程外設(shè)的16位微控制器(用于16位微控制器的閃速在系統(tǒng)可編程外圍芯片)
文件頁數(shù): 19/114頁
文件大?。?/td> 567K
代理商: PSD4235G2
Beta Information
PSD4000 Series
15
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Periph-
mode
*
*
FL_data
Boot_data
FL_code
Boot_code
SR_code
VM Register
Bit definitions:
Bit 0 0 = PSEN can’t access SRAM in 80C51XA modes.
1 = PSEN can access SRAM in 80C51XA modes.
Bit 1 0 = PSEN can’t access Boot in 80C51XA modes.
1 = PSEN can access Boot in 80C51XA modes.
Bit 2 0 = PSEN can’t access main Flash in 80C51XA modes.
1 = PSEN can access main Flash in 80C51XA modes.
Bit 3 0 = RD can’t access Boot in 80C51XA modes.
1 = RD can access Boot in 80C51XA modes.
Bit 4 0 = RD can’t access main Flash in 80C51XA modes.
1 = RD can access main Flash in 80C51XA modes.
Bit 7 0 = Peripheral mode of Port F is disabled.
1 = Peripheral mode of Port F is enabled.
Note:
Upon reset, Bit1-Bit4 are loaded to configurations selected by the user in PSDsoft. Bit 0 and Bit 7 are
always cleared by reset. Bit 0 to Bit 4 are active only when the device is configured in Philips 80C51XA
mode.
* Not used bit should be set to zero
8.0
Register Bit
Definition
(cont.)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
S_size 3
S_size 2
S_size 1
S_size 0
F_size 3
F_size 2
F_size 1
F_size 0
Memory_ID0 Register
Bit definitions:
F_size[3:0] = 4h, main Flash size is 2M bit.
F_size[3:0] = 5h, main Flash size is 8M bit.
S_size[3:0] = 0h, SRAM size is 0K bit.
S_size[3:0] = 1h, SRAM size is 16K bit.
S_size[3:0] = 3h, SRAM size is 64K bit.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
*
*
B_type 1
B_type 0
B_size 3
B_size 2
B_size 1
B_size 0
Memory_ID1 Register
Bit definitions:
B_size[3:0] = 0h, Boot block size is 0K bit.
B_size[3:0] = 2h, Boot block size is 256K bit.
B_type[1:0] = 0h, Boot block is Flash memory.
*
Not used bit should be set to zero.
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