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UPSD3422 Datasheet(PDF) 206 Page - STMicroelectronics |
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UPSD3422 Datasheet(HTML) 206 Page - STMicroelectronics |
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206 / 300 page  Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) PSD module UPSD3422, UPSD3433, UPSD3434, UPSD3454 206/300 Drive Select 08h 09h 16h 17h Write to configure port pins as either CMOS push-pull or Open Drain on some pins, while selecting high slew rate on other pins. Read to check status. Default output type is CMOS push-pull. Table 192 on page 241 Input Macrocells 0Ah 0Bh 18h Read to obtain logic state of IMCs. No WRITEs. Table 173 on page 230 Enable Out OCh 0Dh 1Ah 1Bh Read state of output enable logic on each I/O port driver. 1 = driver output is enabled, 0 = driver is off, and it is in high impedance state. No WRITEs. Table 196 on page 242 Output Macrocells AB (MCELLAB) 20h Read logic state of MCELLAB outputs (bank of eight OMCs). Write to load MCELLAB flip- flops. Table 169 on page 228 Output Macrocells BC (MCELLBC) 21h Read logic state of MCELLBC outputs (bank of eight OMCs). Write to load MCELLBC flip- flops. Table 170 on page 228 Mask Macrocells AB 22h Write to set mask for MCELLAB. Logic '1' blocks READs/WRITEs of OMC. Logic '0' will pass OMC value. Read to check status. Table 171 on page 229 Mask Macrocells BC 23h Write to set mask for MCELLBC. Logic '1' blocks READs/WRITEs of OMC. Logic '0' will pass OMC value. Read to check status. Table 172 on page 229 Main Flash Sector Protection C0h Read to determine Main Flash Sector Protection Setting (non- volatile) that was specified in PSDsoft Express. No WRITEs. Table 165 on page 219 Security Bit and Secondary Flash Sector Protection C2h Read to determine if PSD module device Security Bit is active (non-volatile) Logic 1 = device secured. Also read to determine Secondary Flash Protection Setting (non- volatile) that was specified in PSDsoft. No WRITEs. Table 166 on page 219 Table 162. CSIOP registers and their offsets (in hexadecimal) (continued) Register name Port A (80-pin) Port B Port C Port D Other Description Link Obsolete Product(s) - Obsolete Product(s) |
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