Atmel AVR10004: RCB256RFR2 – Hardware User Manual [APPLICATION NOTE]
13
Table 4-2.
Extension connector (EXT0/1) mapping.
EXT0
Pin#
RCB256RFR2 function
1281V RCB function
Pin#
RCB256RFR2 function
1281V RCB function
1
PG0
PB6
2
PG1
PB7
3
RSTN
#RESET
4
V_RCB
V_RCB
5
GND
GND
6
not connected
XTAL2
7
CLKI
XTAL1
8
GND
GND
9
PD0
PD0 (SCL)
10
PD1
PD1 (SDA)
11
PD2
PD2 (RXD1)
12
PD3
PD3 (TXD1)
13
PD4
PD4
14
PD5
PD5
15
PD6
PD6 (CLKM)
16
PD7
PD7
17
PE4 (#WR)
PG0 (#WR)
18
PE5 (#RD)
PG1 (#RD)
19
GND
GND
20
GND
GND
21
GND
PC0
22
GND
PC1
23
GND
PC2
24
GND
PC3
25
PD4
PC4
26
PD5
PC5
27
PD6
PC6
28
PD7
PC7
29
GND
GND
30
PG2 (ALE)
PG2 (ALE)
EXT1
Pin#
RCB256RFR2 function
1281V RCB function
Pin#
RCB256RFR2 function
1281V RCB function
1
PB1
PB1 (SCK)
2
GND
GND
3
PE7
PE7
4
PE6
PE6
5
TST
(connect for parallel
programming only)
PE5
6
RSTON
PE4
7
PE3
PE3
8
PE2
PE2
9
PE1
PE1 (PDO)
10
PE0
PE0 (PDI)
11
GND
AGND
12
AREF
AREF
13
PF0
PF0
14
PF1
PF1
15
PF2
PF2
16
PF3
PF3
17
PF4
PF4 (TCK)
18
PF5
PF5 (TMS)
19
PF6
PF6 (TDO)
20
PF7
PF7 (TDI)
21
V_RCB
V_RCB
22
GND
GND
23
PB0
PA0
24
PB1
PA1
25
PB2
PA2
26
PB3
PA3
27
PB4
PA4
28
PB5
PA5
29
PB6
PA6
30
PB7
PA7
The connector pin-out mapping enables operation with almost all peripheral elements on existing base boards, except
external SRAM support.