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IA186EM_11 Datasheet, PDF (4/146 Pages) InnovASIC, Inc – 8-Bit/16-Bit Microcontrollers | |||
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IA186EM/IA188EM
8-Bit/16-Bit Microcontrollers
Data Sheet
February 25, 2011
2.2.18 int2/inta0_n/pio31âMaskable Interrupt Request 2 (asynchronous
input)/Interrupt Acknowledge 0 (synchronous output) ..................................34
2.2.19 int3/inta1_n/irqâMaskable Interrupt Request 3 (asynchronous
input)/Interrupt Acknowledge 1 (synchronous output)/Interrupt
Acknowledge (synchronous output) ...............................................................34
2.2.20 int4/pio30âMaskable Interrupt Request 4 (asynchronous input)..................34
2.2.21 lcs_n/once0_nâLower Memory Chip Select (synchronous output
with internal pull-up)/ONCE Mode Request (input) ......................................35
2.2.22 mcs2_nâmcs0_n (no pio, pio15, pio 14)âMidrange Memory Chip
Selects (synchronous outputs with internal pull-up) ......................................35
2.2.23 mcs3_n/rfsh_n (pio25)âMidrange Memory Chip Select
(synchronous output with internal pull-up)/Automatic Refresh
(synchronous output) ......................................................................................35
2.2.24 nmiâNonmaskable Interrupt (synchronous edge-sensitive input) ................35
2.2.25 pcs3_nâpcs0_n (pio19âpio16)âPeripheral Chip Selects 3â0
(synchronous outputs).....................................................................................36
2.2.26 pcs5_n/a1âPeripheral Chip Select 5 (synchronous output)/Latched
Address Bit 1 (synchronous output) ...............................................................36
2.2.27 pcs6_n/a2âPeripheral Chip Select 6 (synchronous output)/latched
Address Bit 2 (synchronous output) ...............................................................36
2.2.28 pio31âpio0âProgrammable I/O Pins (asynchronous input/output
open-drain) ......................................................................................................37
2.2.29 rd_nâRead strobe (synchronous output with tristate) ...................................37
2.2.30 res_nâReset (asynchronous level-sensitive input)........................................37
2.2.31 rfsh2_n/aden_n (IA188EM)âRefresh 2 (synchronous output with
tristate)/Address Enable (input with internal pull-up) ....................................37
2.2.32 rxd/pio28âReceive Data (asynchronous input) ............................................37
2.2.33 s2_nâs0_nâBus Cycle Status (synchronous outputs with tristate) ...............38
2.2.34 s6/clkdiv2_n/pio29âBus Cycle Status Bit 6 (synchronous
output)/Clock Divide by 2 (input with internal pull-up) ................................38
2.2.35 sclkâSerial Clock (synchronous outputs with tristate) .................................38
2.2.36 sdataâSerial Data (synchronous inout) .........................................................39
2.2.37 sden1âsden0âSerial Data Enables (synchronous outputs with
tristate) ............................................................................................................39
2.2.38 srdy/pio6âSynchronous Ready (synchronous level-sensitive input) ............39
2.2.39 tmrin0/pio11âTimer Input 0 (synchronous edge-sensitive input) ................39
2.2.40 tmrin1/pio0âTimer Input 1 (synchronous edge-sensitive input) ..................39
2.2.41 tmrout0/pio10âTimer Output 0 (synchronous output) .................................39
2.2.42 tmrout1/pio1âTimer Output 1 (synchronous output) ...................................39
2.2.43 txd/pio22âTransmit Data (asynchronous output) .........................................39
2.2.44 ucs_n/once1_nâUpper Memory Chip Select (synchronous
output)/ONCE Mode Request 1 (input with internal pull-up)........................40
2.2.45 uzi_n/pio26âUpper Zero Indicate (synchronous output)..............................40
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