参数资料
型号: RCM3200
厂商: Electronic Theatre Controls, Inc.
英文描述: C-Programmable Module with Ethernet
中文描述: C编程与以太网模块
文件页数: 14/96页
文件大小: 2066K
代理商: RCM3200
10
RabbitCore RCM3200
Notes
1. When using pins 33–34 on header J1 to drive LEDs, you must use an external buffer to
drive these external LEDs. These pins are not connected on the RCM3220, which does
not have the LEDs installed.
2. The VRAM voltage is temperature-dependent. If the VRAM voltage drops below about
1.2 V to 1.5 V, the contents of the battery-backed SRAM may be lost. If VRAM drops
below 1.0 V, the 32 kHz oscillator could stop running. Pay careful attention to this volt-
age if you draw any current from this pin.
Locations R45, R46, R53, R57, and R74 allow the population of 0
resistors (jumpers)
that will be used to enable future options. These locations are currently unused.
H
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
See
Notes
below table
30
VBAT_EXT
3 V battery Input
Minimum battery
voltage 2.85 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
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