参数资料
型号: PSD4235F2-90B81
厂商: 意法半导体
英文描述: Flash In-System-Programmable Peripherals for 16-Bit MCUs
中文描述: Flash在系统可编程外设的16位微控制器
文件页数: 17/93页
文件大小: 503K
代理商: PSD4235F2-90B81
PSD4000 Series
Preliminary Information
14
8.0
Register Bit
Definition
(cont.)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
*
*
*
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.
Note:
Upon reset, Bit1-Bit4 are loaded to configurations selected by the user in PSDsoft. Bit 0 is 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.
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.
相关PDF资料
PDF描述
PSD4235F2-90B81I Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90J Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90JI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90M Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90MI Flash In-System-Programmable Peripherals for 16-Bit MCUs
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