SAM7S256_14 Datasheet, PDF (753/775 Pages) ATMEL Corporation – ARM-based Flash MCU

Revision History
In the tables that follow, the most recent revision appears first.
Version
6175L
Comments
Change
Request
Ref
Section 39. ”SAM7S Ordering Information” updated product Ordering Code for SAM7S128 and SAM7S256
MLR rev. D. in Table 39-1, “SAM7S Series Ordering Information”
8380/8467
Section 9.5 ”Debug Unit”, “Chip ID Registers” on page 31, added CHIP ID for SAM7S128 Rev D and
SAM7S256 Rev D.
Table 12-2, “SAM7S Series Debug Unit Chip ID” Added SAM7S128 Rev D and SAM7S256 Rev D;
8380/8467
Errata:
40-1 “Errata Summary Table”: Added SAM7S128D/SAM7S256D Column
Section 40.15 ”SAM7S128 Errata - Revision D Parts”: Added to Errata.
Section 40.10 ”SAM7S256 Errata - Revision D Parts”: Added to Errata.
8381
PWM:
Section 34.4.2 ”Power Management”, removed sentence, “Configuring the PWM does not require the PWM
clock to be enabled.”
8105
WDT:
Section 16.4.2 ”Watchdog Timer Mode Register” added, “Note:The WDD and WDV values must not be
modified within a period of time of 3 slow clock periods following a restart of the watchdog performed by
means of a write access in the WDT_CR register, else the watchdog may trigger an end of period earlier than
expected.”
Section 16.3 ”Functional Description”, after third paragraph; added, “If the watchdog is restarted by writing into
WDT_CR register, the WDT_MR register must not be programmed during a period of time of 3 slow clock
period following the WDT_CR write access. In any case, programming a new value in WDT_MR automatically
initiates a restart instruction.”
8128
Version
6175L
Comments
Product Series Naming Convention
Except for part ordering and library references, AT91 prefix dropped from most nomenclature.
AT91SAM7S becomes SAM7S.
Debug Unit:
“Chip ID Registers” on page 31, CHIP ID is 0x270B0A4F for AT91SAM7S512 Rev B
Debug and Test Features:
Table 12-2, “SAM7S Series Debug Unit Chip ID”, added AT91SAM7S512 Rev B, Chip ID: 02x270B0A4F.
Errata:
Section 40.5 ”SAM7S512 Errata - Revision B Parts”, Updated AT91SAM7S512 Rev B, Chip ID is
02x270B0A4F.
40-1 “Errata Summary Table”, affixed missing S in three SAM7S256/128 column headers.
Change
Request
Ref
rfo
7945
7945
7567
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
753