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ST10F296 데이터시트(PDF) 280 Page - STMicroelectronics |
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ST10F296 데이터시트(HTML) 280 Page - STMicroelectronics |
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280 / 346 page ![]() Obsolete Product(s) - Obsolete Product(s) Register set ST10F296E 280/346 Before Flash initialization completion, the default settings of the different identification registers are as follows: ● IDMANUF: 0403h ● IDCHIP: 128xh (x = silicon revision) ● IDMEM: F0D0h ● IDPROG: 0040h 23.10 System configuration registers This section lists and describes 12 registers which are used for configuring various aspects of the ST10F296E system. System configuration register (SYSCON) SYSCON (FF12h/89h) SFR Reset value: 0xx0h(1) 1. SYSCON reset value is: 0000 0xx0 0x00 0000b. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 STKSZ ROM S1 SGT DIS ROM EN BYT DIS CLK EN WRC FG CSC FG PWD CFG OWD DIS BDR STEN XP EN VISI BLE XPERS HARE RW RW RW RW RW RW RW RW RW RW RW RW RW RW Table 150. SYSCON register description Bit Bit name Function 15-13 STKSZ System stack size Selects the size of the system stack (in the internal IRAM) from 32 to 1024 words. 12 ROMS1 Internal memory mapping 0: Internal memory area mapped to segment 0 (00’0000h...00’7FFFh). 1: Internal memory area mapped to segment 1 (01’0000h...01’7FFFh). 11 SGTDIS Segmentation disable/enable control 0: Segmentation enabled (CSP is saved/restored during interrupt entry/exit). 1: Segmentation disabled (only the IP is saved/restored). 10 ROMEN(1) Internal memory enable (set according to the EA pin during reset) 0: Internal memory disabled. Accesses to the IFlash memory area is made through the external bus. 1: Internal memory enabled. 9 BYTDIS(1) Disable/enable control for the BHE pin (set according to data bus width) 0: BHE pin enabled. 1: BHE pin disabled. Pin may be used for general purpose I/O. 8 CLKEN System clock output enable (CLKOUT) 0: CLKOUT disabled. Pin may be used for general purpose I/O. 1: CLKOUT enabled. Pin outputs the system clock signal or a prescaled value of the system clock according to the XCLKOUTDIV register setting. Obsolete Product(s) - Obsolete Product(s) |
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