| Description: | |
| CoreMark score updated from 2.14 to 2.46 CoreMark/MHz. | |
| Ordering Information: | |
| Added
Ordering codes for Device Variant B. Added 125°C ordering codes for QFN and TQFP package options: SAM D21E, SAM D21G and SAM D21J. Added WLCSP package option for SAM D21G. Added UFBGA package option for SAM D21J. |
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| Pinout: | |
| Added pinout figures for UFBGA64 and WLCSP45. | |
| Product Mapping: | |
| Updated Product Mapping figure with Internal RWW section block for Device Variant B. | |
| Memories: | |
| Physical Memory Map: Added start address for Internal Read While Write (RWW) section for Device Variant B. | |
| Processor And Architecture: | |
| Cortex M0+ Configuration: Removed green connection dots between DMAC Data and AHB-APB Bridge A and Bridge B. | |
| NVMCTRL – Non-Volatile Memory Controller: | |
| Introducing
Read While Write (RWW) feature for Device Variant B. Updated and New sections: Memory Organization: Figure 1 updated. Register Summary and Register Description: PARAM: Added RWWEEP[12:0] bits for Device Variant B. |
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| PORT - I/O Pin Controller: | |
| I/O Pin Configuration: Removed reference to “open-drain”. Access for DRVSTR bit in Pin Configuration n register (PINCFGn.DRVCTR) updated from W to R/W. |
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| SYSCTRL – System Controller: | |
| Removed
references to XOSC32K and OSC32 1kHz clock output option: - XOSC32K: 32kHz External Crystal Oscillator (XOSC32K) Operation - OSC32K: 32kHz Internal Oscillator (OSC32K) Operation 1kHz Output Enable (EN1K) bit set as reserved bit: - Bit 4 in XOSC32K - Bit 3 in OSC32K |
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| Electrical Characteristics: | |
| Brown-Out Detectors Characteristics: Added Figure 1 and Figure 2 and updated conditions in Table 1 and Table 2. | |
| Packaging Information: | |
| Added 64-ball UFBGA and 45-ball WLCSP package drawings. | |
| Schematic Checklist | |
| Updated description in Unused or Unconnected Pins. | |
| Errata: | |
| Device Variant A: - Updated errata for revision A: Added Errata Reference 12291, 13507, 13574. - Updated errata for revision B: Added Errata Reference 12291, 13507, 13574. - Updated errata for revision C: Added Errata Reference 12291, 13507, 13574, 13951. - Added errata for revision D. Device Variant B: - Added errata for revision E (Only available for SAMD21x15/16). |
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| Appendix A. Electrical Characteristics at 125°C: | |
| Electrical characteristics for 125°C added. | |