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MB90634APF Datasheet(PDF) 6 Page - Fujitsu Component Limited. |
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MB90634APF Datasheet(HTML) 6 Page - Fujitsu Component Limited. |
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6 / 107 page  6 MB90630A Series s PIN DESCRIPTION (Continued) STBC: Incorporates standby control *1: LQFP (FPT-100P-M05) *2: QFP (FPT-100P-M06) Pin no. Pin name Circuit type Function LQFP*1 QFP*2 80 82 X0 A Oscillator pin 81 83 X1 A Oscillator pin 50 52 HST C Hardware standby input pin 75 77 RST B Reset input pin 83 to 90 85 to 92 P00 to P07 D (STBC) General-purpose I/O ports Pull-up resistors can be set (RD07 to RD00 = “1”) using the pull-up resistor setting register (RDR0). The setting does not apply for ports set as outputs (D07 to D00 = “1”: invalid at the output setting). AD00 to AD07 In external bus mode, the pins function as the lower data I/O or lower address outputs (AD00 to AD07). 91 to 98 93 to 100 P10 to P17 D (STBC) General-purpose I/O ports Pull-up resistors can be set (RD17 to RD10 = “1”) using the pull-up resistor setting register (RDR1). The setting does not apply for ports set as outputs (D17 to D10 = “1”: invalid at the output setting). AD08 to AD15 In 16-bit external bus mode, the pins function as the upper data I/O or middle address outputs (AD08 to AD15). 99, 100, 1 to 6 1 to 8 P20 to P27 H (STBC) General-purpose I/O ports In external bus mode, pins for which the corresponding bit in the HACR register is “0” function as the P20 to P27 pins. A16 to A23 In external bus mode, pins for which the corresponding bit in the HACR register is “1” function as the upper address output pins (A16 to A23). 79 P30 H (STBC) General-purpose I/O port Functions as the ALE pin in external bus mode. ALE Functions as the address latch enable signal. 810 P31 H (STBC) General-purpose I/O port Functions as the RD pin in external bus mode. RD Functions as the read strobe output (RD). 10 12 P32 H (STBC) General-purpose I/O port Functions as the WR pin in external bus mode if the WRE bit in the EPCR register is “1”. WRL Functions as the lower data write strobe output (WRL). 11 13 P33 H (STBC) General-purpose I/O port Functions as the WRH pin in 16-bit external bus mode if the WRE bit in the EPCR register is “1”. WRH Functions as the upper data write strobe output (WRH). |
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