SAM7S32_14 Datasheet, PDF (125/775 Pages) ATMEL Corporation – Internal High-speed Flash

Table 20-1. Signal Description List
Signal Name
Function
Power
VDDFLASH
Flash Power Supply
VDDIO
I/O Lines Power Supply
VDDCORE
Core Power Supply
VDDPLL
PLL Power Supply
GND
Ground
Clocks
Main Clock Input.
XIN
This input can be tied to GND. In this case, the
device is clocked by the internal RC oscillator.
Test
TST
Test Mode Select
PGMEN0
Test Mode Select
PGMEN1
Test Mode Select
PGMEN2
Test Mode Select
PIO
PGMNCMD
Valid command available
PGMRDY
0: Device is busy
1: Device is ready for a new command
PGMNOE
Output Enable (active high)
PGMNVALID
0: DATA[15:0] or DATA[7:0]⁽¹⁾ is in input mode
1: DATA[15:0] or DATA[7:0]⁽¹⁾ is in output mode
PGMM[3:0]
Specifies DATA type (See Table 20-2)
PGMD[15:0] or [7:0]⁽²⁾ Bi-directional data bus
Notes: 1. DATA[7:0] pertains to the SAM7S32/16.
2. PGMD[7:0] pertains to the SAM7S32/16.
Type
Power
Power
Power
Power
Ground
Input
Input
Input
Input
Input
Input
Output
Input
Output
Input
Input/Output
Active
Level Comments
32KHz to 50MHz
High
High
High
Low
Must be connected to VDDIO
Must be connected to VDDIO
Must be connected to VDDIO
Must be connected to GND
Low Pulled-up input at reset
High Pulled-up input at reset
Low Pulled-up input at reset
Low Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
125