Z-World RabbitCore RCM3200, User Manual

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10 RabbitCore RCM3200
Locations R45, R46, R53, R57, R67, R70, and R74 allow the population of 0
Ω
resistors
(jumpers) that will be used to enable future options. These locations are currently unused.
Head
er J
2
20 PG7 Input/Output RXE
Serial Port E
21 PG6 Input/Output TXE
22 PG5 Input/Output RCLKE Serial Clock E input
23 PG4 Input/Output TCLKE Serial Clock E ouput
24 /IOWR Output External write strobe
25 /IORD Input External read strobe
26–27
SMODE0,
SMODE1
(0,0)—start executing at address zero
(0,1)—cold boot from slave port
(1,0)—cold boot from clocked Serial Port A
SMODE0 =1, SMODE1 = 1
Cold boot from asynchronous Serial Port A at
2400 bps (programming cable connected)
Also connected to
programming cable
28 /RESET_IN Input Input to Reset Generator
29 VRAM Output
Maximum Current Draw
50 µA
30 VBAT_EXT 3 V battery Input
Minimum battery
voltage 2.7 V
31 +3.3V Input 3.15–3.45 V DC
32 GND
33 n.c. Reserved for future use
34 GND
Table 1. RCM3200 Pinout Configurations (continued)
Pin Pin Name Default Use Alternate Use Notes