SM59R16A2 Datasheet, PDF (56/67 Pages) SyncMOS Technologies,Inc – 8-Bit Micro-controller

SM59R16A2/SM59R08A2
8-Bit Micro-controller
64KB/32KB ISP Flash & 2KB RAM embedded
16 Expanded External Interrupt (EEI) interface
Expanded External Interrupt (EEI) interface can be connected to an 8 x n matrix keyboard or any
similar devices.It has 8 inputs with programmable interrupt capability on either high or low
level.These 8 inputs are through P1 and can be the external interrupts to leave from the idle and stop
modes.The 8 inputs are independent from each other but share the same interrupt vector.
P1.0
P1.1
P1.2
P1.3
OR
P1.4
EEIIF: EEI interrupt
P1.5
P1.6
IEEEI: EEI interrupt enable
P1.7
Fig. 16-1: Interrupts from EEI 8 inputs
EEI
KBLS
KBE
KBF
Description
EEI level selection
EEI input enable
EEI flag
Direct
93h
94h
95h
Bit 7
KBLS7
KBE7
KBF7
Bit 6 Bit 5 Bit 4
EEI function
KBLS6 KBLS5 KBLS4
KBE6 KBE5 KBE4
KBF6 KBF5 KBF4
Bit 3
KBLS3
KBE3
KBF3
Bit 2
KBLS2
KBE2
KBF2
Bit 1
KBLS1
KBE1
KBF1
Bit 0
KBLS0
KBE0
KBF0
RESET
00h
00h
00h
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M034
56
Ver.B SM59R16A2/SM59R08A2 06/2009