101-1069 Rabbit Semiconductor, 101-1069 Datasheet - Page 34

• Manufacturer Part Number: 101-1069
• Description: KIT DEVELOPMENT RCM3305 US
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 3000r
• Type: MPU Moduler

Specifications of 101-1069

• Contents: RabbitCore Module, Dev. Board, AC Adapter, Cable and Dynamic C® CD-Rom
• Processor To Be Evaluated: RCM3305
• Interface Type: Ethernet
• For Use With/related Products: RCM3305
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 316-1129

Notes
1. When using pins 33–34 on header J3 to drive LEDs, these pins can handle a sinking
2. The VRAM voltage is temperature-dependent. If the VRAM voltage drops below about
28
current of up to 8 mA.
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.
Pin
20
21
22
23
24
25
26–27
28
29
30
31
32
33
34
Table 2. RCM3305/RCM3315 Pinout Configurations (continued)
PG7
PG6
PG5
PG4
/IOWR
/IORD
SMODE0,
SMODE1
/RESET_IN
VRAM
VBAT_EXT
+3.3 VIN
GND
n.c.
GND
Pin Name
Input/Output
Input/Output
Input/Output
Input/Output
Output
Output
(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)
Input
Output
3 V battery Input
Power Input
Default Use
RXE
TXE
RCLKE
TCLKE
Alternate Use
RabbitCore RCM3305/RCM3315
Serial Port E
Serial Clock E input
Serial Clock E ouput
External write strobe
External read strobe
Also connected to
programming cable
Input to Reset Generator
See Notes below table
Minimum battery
voltage 2.85 V
3.15–3.45 V DC
Reserved for future use
Notes