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IA188EM-PQF100I-R 数据表(PDF) 59 Page - InnovASIC, Inc |
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IA188EM-PQF100I-R 数据表(HTML) 59 Page - InnovASIC, Inc |
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59 / 133 page  IA186EM/IA188EM Data Sheet 8/16-BIT Microcontrollers As of Production Version -03 Programmable I/O (PIO) 32 pins are programmable as I/O signals. The following tables list these pins with their pin name and PIO number, first in PIO numerical order, then in pin name alphabetical order. Programming a pin as a PIO should only be performed if the normal pin function is not required as the normal function is disabled and no longer has any affect on the pin. A PIO pin can be programmed as an input or output with or without either a weak pull-up or pull-down, or as an open-drain output. Following a power-on reset, the PIO pins have default status as shown in the following tables. PIO No. Associated Pin Power-On Reset Status Associated Pin PIO No. Power-On Reset Status 0 tmrin1 Input with pull-up a17 7 Normal operation(3) 1 tmrout1 Input with pull-down a18 8 Normal operation(3) 2 pcs6_n/a2 Input with pull-up a19 9 Normal operation(3) 3 pcs5_n/a1 Normal operation(3) den_n/ds_n 5 Normal operation(3) 4 dt/r_n Normal operation(3) drq0 12 Input with pull-up 5 den_n Normal operation(3) drq1 13 Input with pull-up 6 srdy Normal operation(3) dt/r_n 4 Normal operation(3) 7(1) a17 Normal operation(3) int2/ 31 Input with pull-up 8(1) a18 Normal operation(3) int4 30 Input with pull-up 9(1) a19 Normal operation(3) mcs0_n 14 Input with pull-up 10 tmrout0 Input with pull-down mcs1_n 15 Input with pull-up 11 tmrin0 Input with pull-up mcs2_n 24 Input with pull-up 12 drq0 Input with pull-up mcs3_n/rfsh_n 25 Input with pull-up 13 drq1 Input with pull-up pcs0_n 16 Input with pull-up 14 mcs0_n Input with pull-up pcs1_n 17 Input with pull-up 15 mcs1_n Input with pull-up pcs2_n 18 Input with pull-up 16 pcs0_n Input with pull-up pcs3_n 19 Input with pull-up 17 pcs1_n Input with pull-up pcs5_n/a1 3 Input with pull-up 18 pcs2_n Input with pull-up pcs6_n/a2 2 Input with pull-up 19 pcs3_n Input with pull-up rxd 28 Input with pull-up 20 sclk Input with pull-up s6/clkdiv2 29 Input with pull-up(1,2) 21 sdata Input with pull-up sclk 20 Input with pull-up 22 sden0 Input with pull-up sdata 21 Input with pull-up 23 sden1 Input with pull-up sden0 22 Input with pull-up 24 mcs2_n Input with pull-up sden1 23 Input with pull-up 25 mcs3_n/rfsh_n Input with pull-up srdy 6 Normal operation(4) 26(1,2) uzi_n Input with pull-up tmrin0 11 Input with pull-up 27 txd Input with pull-up tmrin1 0 Input with pull-up 28 rxd Input with pull-up tmrout0 10 Input with pull-down 29(1,2) s6/clkdiv2 Input with pull-up tmrout1 1 Input with pull-down 30 int4 Input with pull-up txd 27 Input with pull-up 31 int2 Input with pull-up uzi_n 26 Input with pull-up NOTES These notes apply to both tables: 1. Emulators use these pins and also s2_n-s0_n, res_n, nmi, clkouta, bhe_n ale, ad15-ad0, and a15-a0. 2. If bhe_n/aden_n (IA186EM) or rfsh_n/aden_n (IA188M) is held low during power-on reset, these pins will revert to normal operation. 3. Input with pull-up option available when used as PIO. 4. Input with pull-down option available when used as PIO. These default status setting may be changed as desired. 3737 Princeton NE, Ste 130 • Albuquerque, NM 87107 • Tel 505.883.5263 • Fax 505.883.5477 • www.Innovasic.com |
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